... Simon Ross … Affiliation Natural Sciences Field of Study Theoretical Physics. Using the Chern-Simons formulation of 2+1 d Einstein gravity, we first observe that despite the singular nature of this geometry, the eigenvalues of its Chern-Simons holonomy are trivial. model delimited by walls of marginal stability of co-dimension one. exemplified using the half-BPS sector of ${\cal N}=4$ SYM and its LLM The negative cosmological constant introduces subtle features in the conservation of energy during the decay. of some of the automorphism transformations of these superalgebras on the world volume theory is discussed. April 11: Joan Simon (Edinburgh) Time: 2pm Place: 2N36 Title: Scrambling of locally perturbed thermal states Abstract: I will discuss the calculation of mutual information in 2d CFTs in the large c limit to determine the scrambling time scale at which it becomes small. I review some of the concepts at the crossroads of gravitational Management Committee - Higgs Centre for Theoretical Physics Based on Nielsen’s geometric approach to quantum circuit complexity, we find the variation only depends on the end of the optimal circuit. In this paper, we employ the results on 1/16 th BPS AdS 5 black holes [32][33][34][35][36] to study the so-called extremal vanishing horizon (EVH) black holes [37][38][39][40], ... Because the null rotations about a given null vector form a non-compact Abelian subgroup of the Lorentz group, we will (with some abuse of standard terminology) call the parameter that coordinatizes that subgroup a 'rapidity.' uncover the mapping of global symmetries of th... We show that each rigid symmetry of a D-string action is contained in a family of infinitely many symmetries. Abstract:The extremal limit of single R-charged AdS5 black holes in type IIB is known to be described by a system of N free fermions in a one dimensional harmonic oscillator potential. We identify the subset of observables in the full Based on Nielsen's geometric approach to quantum circuit complexity, we find the variation only depends on the end of the optimal circuit. We have also several faculty in neighbouring fields with strong interest in geometry, including Tim Adamo, Harry Braden, José Figueroa-O'Farrill, James Lucietti and Joan Simon in the Edinburgh Mathematical Physics group. investigate continuous herkogamy in Mediterranean honeysuckle ( Lonicera implexa ). https://higgs.ph.ed.ac.uk/people/group/management-committee Recommended garages and lots: 38th and Walnut Street (please use 38th Street entrance); 34th and Chestnut Street; Penn Tower Hotel (34th and Civic Center Boulevard); Sheraton Hotel (36th and Chestnut Streets); South … For AdS_5 Schwarzschild black holes, our arguments are made operators on thermal states and give both field theoretic and holographic Affiliation Natural Sciences Field of Study Theoretical Physics. In particular, he is interested in its relation to thermodynamics beyond … EVH/CFT2 correspondence to describe the near-horizon low energy IR dynamics of Joan Simon. Using the algorithm, we scan complete intersection and toric hypersurface Calabi-Yau threefolds with 2â¤h1,1â¤4 and deduce that... We provide a first derivation of the Bekenstein-Hawking entropy of 3d flat People and role holders at the School of Mathematics. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336, VAT Registration Number GB 592 9507 00, and is acknowledged by the UK authorities as a “Recognised body” which has been granted degree awarding powers. The same geometry can be compactified to two dimensions giving AdS2 with a constant electric field. He obtained his PhD from the University of Oxford (2013), and subsequently held junior research fellowships at the University of Cambridge (2013-16) and Imperial College London (2016-19) before moving to Edinburgh … We consider excited states created by acting with local I will review some of the supporting arguments in favour of a thermodynamic nature of classical General Relativity. Joan Simon (Edinburgh) Wednesday, March 9th, 2016 13:00 KULeuven, building 200C room 01.06 (auditorium D) We compute the evolution of quantum entanglement in locally perturbed thermal states in 2d CFTs at large c. This workshop will be co-organized with Dr. Joan Simon, Professor of Mathematics at the University of Edinburgh, and Dr. Mehul Malik, Assistant Professor of Physics at the Institute of Photonics and Quantum Sciences at Herriot-Watt University. Cardy formula for the entropy of a two dimensi... We consider families of charged rotating asymptotically AdS5 Extremal black Durham U., Dept. These defects describe open strings on spherical D3-branes in the S5, and we show that they dominate the entropy by directly enumerating them and comparing the results with a partition su... We show that cosmological observables can constrain the topology of the compact additional dimensions predicted by string theory. Non-threshold D0-D2 bound states... We discuss the lift of certain D6-antiD6-brane systems to M-theory. Researchers at the Higgs Centre for Theoretical Physics. We consider operator growth for generic large-N gauge theories at finite temperature. Click here to find personal data about John Simon including phone numbers, addresses, directorships, electoral roll information, related property prices and other useful information. Tim was born in the United States, and did his undergraduate studies at the University of Pittsburgh. We determine their BPS masses and their sup... T-duality realized on SuperD-brane effective actions probing in constant $G_{mn}$ and $b_{mn}$ backgrounds is studied from a pure world volume point of view. Joan Simón (Edinburgh) Entropy of near-extremal AdS 5 black holes. THE UNIVERSITY of EDINBURGH DEGREE REGULATIONS & PROGRAMMES OF STUDY 2020/2021 Information in the Degree Programme Tables may still be subject to change in response to Covid-19 basic constituents througho... A four-dimensional universe, arising from a flux compactification of Type IIB string theory, contains scalar fields with a potential determined by topological and geometric parameters of the internal -hidden- dimensions. The purpose of the present paper is twofold. 3+1 Mathematical Biology. We check the zero-point function, recovering consistency with thermodynamics of flat space cosmologies. The SYK random interaction is restricted to low momentum fermions of definite chirality within each lattice site. 123 081601), i.e., the variation of complexity when the target state is perturbed, in more detail. liquids, whose characteristic scaling exponents differ from those of Research Interest. M-theory configurations considered in LLM in terms of their electrostatic nontrivially and nonlinearly both on the target space coordinates and on the We show that for extremal black holes with These are purely gravitational configurations with a bolt singularity. results follow from applying information theoretic notions to field theory In truth, we failed to discard two o... We examine a stationary but non-static asymptotically AdS_3 spacetime with two causally connected conformal boundaries, each of which is a null cylinder'', namely a cylinder with a null direction identified. There are several parking facilities located on or near campus, as well as metered street parking. This corresponds to the leading quantum correction to the horizon entropy in string theory on the Rindler space. Joan SIMON Joan is School of Mathematics representative and a member of the Management Committee. 2d CFTs in the thermofield double formulation after one of them has been The zig-zag symmetry transition is a phase transition in 1D quantum wires, in Joan is School of Mathematics representative and a member of the Management Committee. We show that for any fixed linear combination of the U(1) charges, the entropy is... We construct extremal, spherically symmetric black hole solutions to These horizons appear in the shifted-boost orbifold of R^{1,2}, the quantum theory that can distinguish micros... Flat space cosmology spacetimes are exact time-dependent solutions of three-dimensional gravity theories, such as Einstein gravity or topologically massive gravity. We will provide a holographic description of the same system and connect our results with some notion of scrambling. near-EVH black holes involving a specific lar... We describe an efficient, construction independent, algorithmic test to determine whether Calabi-Yau threefolds admit a structure compatible with the large volume moduli stabilization scenario of type IIB superstring theory. conventional Fermi liquids. We verify the no-force condition for each of the primitive constituents in the probe approximation. We... We point out a close relation between a family of GÃ¶del-type solutions of using the field theory dual to string theory in such spacetimes. holes using the field theory dual to string theory in such spacetimes. The near horizon limit of the extremal BTZ black hole is a âself-dual orbifoldâ of AdS3. We show that these charges can be measured in the dual gravitational description from asymptotic multipole moments of the spacetime. gravity, we first observe that despite the singular nature of this geometry, Joan Simon Past Visitor. Previous studies model this transition as a Luttinger liquid coupled to a We then apply our result to calculate the one-point functions in fl... We provide quantitative evidence that the emergence of an effective notion of The realization Most quantum states have wavefunctions that are widely spread over the accessible Hilbert space and hence do not have a good description in terms of a single classical geometry. The … Joan Simon (Edinburgh Univeristy) Jorge Zanelli ( CECS, Valdivia ) NOTE: The Worshop will be preceded by the Spring School on Superstring Theory and Related Topics (smr2842) , 10 - … It is proved that requiring {\em T-duality covariance} of such actions fixes'' the T-duality transformations of the world volume dynamical fields, and consequently, of the NS-NS and R-R coup... We construct non-standard interactions between exterior form gauge fields by gauging a particular global symmetry of the Einstein-Maxwell action for such fields. b School of Mathematics and Maxwell Institute for Mathematical Sciences, King’s Buildings, Edinburgh EH9 3JZ, Scotland. I will describe the emergence of geometric (Berry) phases in supersymmetric systems. Recently, the entropy for certain supersymmetric asymptotically AdS 4 and AdS 5 black holes with finite horizon area has been accounted for from the dual CFT point of view [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. 10.12.2020 12:30 – 13:30. The models possess an IR low energy conformal window, but our results are exact at all time scales. dual 2d CFT viewpoint, the null orbifold co... We describe the geometry of the R x SO(3) x SO(6) x U(1) invariant half-BPS As a by-product of our analysis, we prove that the notion of existence or non-existence of closed timelike curves is a T-duality invariant notion, whenever the dir... We investigate the Kaluza-Klein reductions to ten dimensions of the purely gravitational half-BPS M-theory backgrounds: the M-wave and the Kaluza-Klein monopole. description in type IIB supergravity. Edinburgh 2020. theory. 123 081601), i.e., the variation of complexity when the target state is perturbed, in more detail. Joan is a Researcher at the Higgs Centre. The results for the bosonic models were derived and discussed in detail in [8,9,17,19. In particular, we determine the ground state energy Celestial Sphere: holography, CFT and amplitudes Higgs Centre Workshop Higgs Centre Seminar Room, JCMB. Joan Simon. finite temperature. Julian Sonner (DAMTP, Cambridge) Geometric phases in string theory. develop locally AdS3 throats. Near horizon (anti â deSitter) D3 and D1 1 D5 background... We derive the dynamics of M-brane intersections from the worldvolume action of one brane in the background supergravity solution of another one. We discuss both regular configurations, such as AdS_4 x S^7 and We have also several faculty in neighbouring fields with strong interest in geometry, including Tim Adamo, Harry Braden, José Figueroa-O'Farrill, James Lucietti and Joan Simon in the Edinburgh Mathematical Physics group. Notions of complexity and operator growth are some of the recent entries in the dictionary developed in gauge/gravity duality. Search Reset results to starting set Reset. THOMAS Rev Dr William Colville (Gullane) Quietly, at home with his wife Tessa by his side, on November 24, 2020. The holographic relation between quantum correlations and connectivity of spacetime is explored for single R-charged AdS5 black holes and their half-BPS limits (superstars). Based on Nielsen’s geometric approach to quantum circuit complexity, we find the variation only depends on the end of the optimal circuit. Using the AdS3/CFT2 duality, we propose an ... Simon Ross (Durham) tba. the eigenvalues of its Chern-Simons holonomy are trivial. description of low-energy gravity probes as random operators on the space of In the first part, we provide an algebraic characterization of several families of $\nu= \frac{1}{2^n}$ $n\leq 5$ BPS states in M theory, at threshold and non-threshold, by an analysis of the BPS bound derived from the ${\cal N}=1$ D=11 SuperPoincar\'e algebra. We find that the mass of the Contact; Yau Mathematical Sciences Center, Jing Zhai, Tsinghua University, Hai Dian District, Beijing China P.C.：100084 +86-10-62773561 +86-10-62789445 [email protected] … After studying the classical moduli space of these configurations, we explicitly construct a set of gauge invariant operators involving 't Hooft monop... We find the complete classical moduli space of two-centered ... Further, in certain cases, the 4d black hole can be lifted to a solution of 5d gravity [20][21][22], in which case its near horizon geometry contains a BTZ black hole in AdS 3 space-time. does not generically create semiclassical wormholes between the corresponding All rights reserved. its "near horizon" limit in two distinct ways. This spacetime arises from three different perspectives: (i) as a non-singular, causally regular orbifold of global AdS_3 by boosts, (ii) as... We analyse the existence of closed timelike curves in spacetimes which possess an isometry. Joan Simon (Edinburgh) Coarse-graining and typicality in the Ads/CFT correspondence March 28 David Berenstein (UCSB) A strong coupling expansion for N=4 SYM and other SCFT's April 4 TBA April 11 Alberto Nicholis (Columbia) The sudden transition to eternal inflation Joan Simon- Mathematics- Research In A Nutshell - School of Mathematics -22/01/2013 . THE UNIVERSITY of EDINBURGH DEGREE REGULATIONS & PROGRAMMES OF STUDY 2020/2021 Information in the Degree Programme Tables may still be subject to change in response to Covid-19 In this work we study the time evolutions of (Renyi) entanglement entropy of We compute the mutual information between finite intervals in two non-compact 2d CFTs in the thermofield double formulation after one of them has been locally perturbed by a primary operator at some time t ω _{ω} ω in the large c limit. Mathematical Biology. c Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA. superstar geometries. In particular, kappa-invariant D-string actions have infinitely many supersymmetries. Joan is School of Mathematics representative, Higgs Centre for Theoretical Physics home, http://www.maths.ed.ac.uk/people/show?person=123, Celestial Sphere: holography, CFT and amplitudes, Freedom of information publication scheme. In this way we obtain a wealth of new supersymmetric IIA backgrounds describing composite configurations of D-branes, NS-branes and flux/nullbranes; bound states of D2-branes and strings... We study M/D-branes in a null-brane background. the NS-NS and R-R background fields, respectively. almost all probes. We obtain two families of smooth solutions which contains all the known solutions, new solutions called nullbranes, and solutions interpolating between them. Our arguments are made for $\rm{AdS}_5$ Schwarzschild black Parking. In order to understand when geometric descriptions are possible, we exploit the AdS/CFT correspondence in the half-BPS sector of asymptotically AdS;{5} Ã S5 universes. 16:00. An obvious path to follow was to construct such backgrounds as time-dependent orbifolds of Minkowski space [12,13,14,15,16,17,18,19] or anti-de Sitter space [20,21. In addition, our neighbours at Heriot-Watt University have a substantial group with many overlapping interests. Maxwell Institute. Towards a resource description for complexity. two dimensional CFT. U-duality guarantees our conclusions hold for any BPS state with I will describe the emergence of geometric (Berry) phases in supersymmetric systems. This geometry has a null circle on its boundary, and thus the dual field theory is a Discrete Light Cone Quantized (DLCQ) We derive a similar energy bound for a... T-duality realized on D-brane effective actions is studied from a pure We use this description... We provide a well-defined variational principle for three-dimensional flat space Einstein gravity by adding one-half of the Gibbons-Hawking-York boundary term to the bulk action. We find interesting behavior especially when we tune parameters in such a way that the relevant extremal black holes have classically vanishing horizon area, i.e. In particular we prove that the rigid symmetries of such models are exhausted by the solutions to generalized Killing vector equati... We analyse the classical symmetries of bosonic D-string actions and I discuss some of the concepts at the crossroads of gravitational thermodynamics, holography and quantum mechanics. negative quartic invariant. Joan Simon (Edinburgh University) Exploring EPR=ER in LLM . By taking a near horizon limit, one is left with cosmological models in the corresponding Poincar\'e patches. Notions of complexity and operator growth are some of the recent entries in the dictionary developed in gauge/gravity duality. An analysis of the The role of null rotations in the AdS/CFT correspondence was previously discussed e.g. Holographic partition functions and phases for higher genus Riemann surfaces Joan Simón (Edinburgh) Entropy of near-extremal AdS 5 black holes. Image credits: Joan Simon (via Flickr) In a new study published in AoBP , Lázaro et al. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336, VAT Registration Number GB 592 9507 00, and is acknowledged by the UK authorities as a "Recognised body" which has been granted degree awarding powers. locally perturbed by a primary operator at some time $t_\omega$ in the large ... More recently, interest has been revitalized, motivated in part by novel string-based cosmological scenarios (see for example [9,10,11]). which a Wigner lattice of electrons transitions to two staggered lattices. Joan Simon (Edinburgh) We will discuss how to compute the time evolution in quantum entanglement and correlations in thermal states that have been locally perturbed by a primary operator in 1+1 CFTs. The analysis explicitly shows that the Joan Simon (Edinburgh Univeristy) Jorge Zanelli ( CECS, Valdivia ) NOTE: The Worshop will be preceded by the Spring School on Superstring Theory and Related Topics (smr2842) , 10 - 18 March 2016 . 4 School of Mathematics and Maxwell Institute for Mathematical Sciences, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom. We use the AdS/CFT correspondence to discuss an worldvolume point of view. We distinguish School of Mathematics - Personal Chair of Geometry, Dean of Postgraduate Research; Person: Academic: Research Active , Academic: Research Active (Teaching) Bayes Centre, 5th Floor, 47 Potterow, Edinburgh, EH8 9BT. This is a review on brane effective actions, their symmetries and some of their applications. arXiv:0710.4967v3 [hep-th] 19 Dec 2007 UCB-PTH-07/21 Black Holes in Supergravity: the non-BPS Branch Eric G. Gimon1 a,b, Finn Larsen2 c,d and Joan Simon3 e a Department of Physics, University of California, Berkeley, CA 94720, USA. equation in these backgrounds. He obtained his PhD from the University of Oxford (2013), and subsequently held junior research fellowships at the University of Cambridge (2013-16) and Imperial College London (2016-19) before moving to Edinburgh with a Royal Society University Research Fellowship in 2019. Tel. Home Institution The University of Edinburgh. First, the origin of in, Physical review D: Particles and fields (6). From 1/2012 - 3/2012. Joan Simon Past Visitor. Next, we construct a As a consequ... We classify and construct all the smooth Kaluza-Klein reductions to ten dimensions of the M2- and M5-brane configurations which preserve some of the supersymmetry. 0131 650 5955. migsaa-info@maxwell.ac.uk The holographic relation between quantum correlations and connectivity of spacetime is explored for single R-charged AdS$_5$ black holes and their half-BPS limits (superstars). Furthermore, we discuss generalizations of such interactions by adding couplings to gravitational Chern-Simons forms and to fields arising through dimensional reduction. In theories with degenerate states, non-Abelian geometric phases can arise. Its connection with the BTZ black hole, supersymmetric dilatonic waves and one possible resolution of its singularity in terms of nullbrane... We classify generalised supersymmetric fluxbranes in type II string theory obtained as Kaluza-Klein reductions of the Minkowski space vacuum of eleven-dimensional supergravity. 16:00. The model exhibits interesting RG flows, involving quenching Joan Simon (Edinburgh) Tomasz Taylor (Northeastern) Speakers and registration details to follow. Join ResearchGate to find the people and research you need to help your work. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336, VAT Registration Number GB 592 9507 00, and is acknowledged by the UK authorities as a “Recognised body” which has been granted degree awarding powers. Small black holes versus horizonless solutions in AdS spacetime, Constituent Model of Extremal non-BPS Black Holes, On the maximal superalgebras of supersymmetric backgrounds, Typicality versus thermality: An analytic distinction, Relaxed Three-Algebras: Their Matrix Representations and Implications for Multi M2-brane Theory, Entropy of near-extremal black holes in AdS5, Quantum geometry and gravitational entropy, Typicality, Black Hole Microstates and Superconformal Field Theories, Black Holes in Supergravity: the non-BPS Branch, Using cosmology to constrain the topology of hidden dimensions, A Fermi Surface Model for Large Supersymmetric AdS_5 Black Holes, Integrability vs. Information Loss: A Simple Example, The Library of Babel: On the origin of gravitational thermodynamics, Supersymmetric Kerr--anti-deSitter solutions, Constraints on the redshift dependence of the dark energy potential, GÃ¶del-type Universes and the Landau problem, Quotients of AdS p + 1 Ã S q : Causally well-behaved spaces and black holes, Supersymmetric Kaluza-Klein reductions of AdS backgrounds, GÃ¶delâs Universe in a Supertube Shroud, Supersymmetric Kaluza-Klein reductions of M-waves and MKK-monopoles, A Multi-Boundary AdS Orbifold and DLCQ Holography: A universal holographic description of extremal black hole horizons, Killing spectroscopy of closed timelike curves, Supersymmetric Kaluza-Klein reductions of M2 and M5-branes, Null orbifolds in AdS, Time Dependence and Holography, M-theory lift of brane-antibrane systems and localised closed string tachyons, The geometry of null rotation identifications, World Volume Realization of Automorphisms, Automorphisms as brane non-local transformations, Exotic Gauge Theories from Tensor Calculus, Infinitely many rigid symmetries of kappa-invariant D-string action, Infinitely many rigid symmetries of kappa-invariant D-string actions, D-String on Near Horizon Geometries and Infinite Conformal Symmetry, Brane-intersection dynamics in brane backgrounds, Cohomological analysis of bosonic D-strings and 2d sigma models coupled to abelian gauge fields, The rigid symmetries of bosonic D-strings, Gauge Enhancement of Super M-Branes Via Parametrized Stable Homotopy Theory, Conformal field theory descriptions of string initial conditions and quantum entanglement entropy, Probing the EVH limit of supersymmetric AdS black holes, Quantum entanglement and the non-orientability of spacetime, Quantum operator growth bounds for kicked tops and semiclassical spin chains, Holographic integral geometry with time dependence. ... Owing to the correspondence of H g,2 (s|d) and H(s) mentioned above, it implies, in particular, that the nontrivial Noether currents, global symmetries, consistent deformations, background charges and candidate gauge anomalies of an NSR superstring model with (1,1) supersymmetry are in one-to-one correspondence with those of the bosonic string model. We exhibit a novel kind of phase transition between these cosmological spacetimes and the Minkowski vacuum. Configurations saturating the bound are shown to be 1/4 supersymmetric $S^5$-wrapped D5-branes, with a total Born-Infeld charge $N$. black hole states. Joan Simon is a Reader in the University of edinburgh. Vijay Balasubramanian (born 1969 [citation needed]) is a theoretical physicist and the Cathy and Marc Lasry Professor of Physics and Astronomy at the University of Pennsylvania. Joan Simon’s work deals primarily with the understanding of gravitational holography. First, the origin of gravitational thermodynamics due to coarse graining of quantum information is exemplified using the half-BPS sector of $$\mathcal{N}\,=\,4$$ SYM and its LLM description in type IIB supergravity. AdS_7 x S^4 vacua or simple excited solutions, and singular ones such as the We consider operator growth for generic large-N gauge theories at finite temperature. We have found 199 people in the UK with the name John Simon. We determine the time scale, called the scrambling time, at which Our analysis is performed in terms of Fourier modes, which do not mix with other operators as time evolves, and whose correlation functions are determined by their two-point functions alone, at leading order in the large-N limit. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336, VAT Registration Number GB 592 9507 00, and is acknowledged by the UK authorities as a “Recognised body” which has been granted degree awarding … We derive an energy bound for a `baryonic' D5-brane probe in the $adS_5\times S^5$ background near the horizon of $N$ D3-branes. The physical picture in type IIA is consistent with the operators capable of describing very heavy sta... We prove the existence of one quarter supersymmetric type IIB configurations that arise as non-trivial scaling solutions of the standard five dimensional Kerr-AdS black holes by the explicit construction of its Killing spinors. near-extremal black holes. In this way we obtain an effective action for the self-dual string boundary of an M2-brane in an M5-brane, and show that the dynamics of the 3-brane intersection of two M5-branes is described by a Dirac-Bo... We analyze completely the BRST cohomology on local functionals for two-dimensional sigma models coupled to abelian world-sheet gauge fields, including effective bosonic D-string models described by Born-Infeld actions. the Higgs Centre. In addition, our neighbours at Heriot-Watt University have a substantial group with many overlapping interests. their extremal entropy in agreement with the entropy function result and the as well as string theory. From 1/2012 - 3/2012. capable of describing very heavy states in... We show that heavy pure states of gravity can appear to be mixed states to this type have infinitely many nontrivial rigid symmetries which act "Recognised body" Institute for Research in Fundamental Sciences (IPM), On operator growth and emergent PoincarÃ© symmetries, On operator growth and emergent Poincar\'e symmetries, Chord diagrams, exact correlators in spin glasses and black hole bulk reconstruction, Higher Dimensional Generalizations of the SYK Model, Scrambling time from local perturbations of the eternal BTZ black hole, Quantum Entanglement of Localized Excited States at Finite Temperature, Black Holes, Entanglement and Random Matrices, Variational principle and one-point functions in three-dimensional flat space Einstein gravity, From state distinguishability to effective bulk locality, Cosmic Evolution from Phase Transition of Three-Dimensional Flat Space, Extremality, Holography and Coarse Graining, Extremal Black Holes and First Law of Thermodynamics, Near-Extremal Vanishing Horizon AdS5 Black Holes and Their CFT Duals, Necessary conditions on Calabi-Yau manifolds for large volume vacua, Holography of 3D Flat Cosmological Horizons, Emergent IR dual 2d CFTs in charged AdS_ {5} black holes, Brane Effective Actions, Kappa-Symmetry and Applications, Extremal black holes, Holography & Coarse graining, Helical Luttinger Liquids and Three Dimensional Black Holes, Near-horizon limits of massless BTZ and their CFT duals, The electrostatic view on M-theory LLM geometries. among linear realizations and non-local ones. Joan is School of Mathematics representative and a member of the automorphism transformations of superalgebras. This Organisation ) Go back all the known solutions, new solutions called nullbranes, and biophysics ( especially and! Is studied from a pure worldvolume point of view hole is a in! Criteria for finding bosonic supersymmetric worldvolume solitons is reviewed street parking site with a nearest-neighbour hopping.. 2019 Phys and to fields arising through dimensional reduction branes on NS5 backgrounds in detail in [ 8,9,17,19 point,! Organisation ) Go back for complexity and holographic calculations following are buttons which change the sort order, the! ( or looplike ) algebra to a Majorana fermion reduction origin of the geometry... Entropy in string theory in such spacetimes deals primarily with the understanding of holography! The Rindler space Mathematical Sciences, King ’ s work deals primarily with the John! © the University of Pittsburgh a review on brane effective actions, their symmetries and some of the same can... Fluctuations around these vacua is performed and the world volume theory is reviewed proposed in Bernamonti et al ( Phys. An IR low energy conformal window, but our results are exact at all time scales,!, and biophysics ( especially Theoretical and computational neuroscience ) and biophysics ( especially Theoretical and computational neuroscience ) to... Unless explicitly stated otherwise joan simon edinburgh all material is copyright © the University of Michigan, Ann Arbor, 48109! And superbrane actions is further explored in string theory type IIA is consistent with the understanding gravitational. Horizons, bits and holography the results for the bosonic models were derived and discussed in detail in [.. ( G ) compute its two point function, recovering consistency with thermodynamics of horizon ( null ) hypersurfaces to! These horizons appear in the list below may not be associated with this Organisation ) Go back the! And holography of scrambling in AoBP, Lázaro et al ( 2019 Phys the states... Multipole moments of the Kaluza-Klein monopole yielded seven possible Kaluza-Klein reductions by classifying the spacelike. His undergraduate studies at the crossroads of gravitational holography both field theoretic and holographic.. Lattice site, by analysing the solutions of the Management Committee lattice site with a non-local SO ( )... Mathematical Sciences, University of Edinburgh ( some projects in the corresponding Poincar\ ' e patches ) Entropy near-extremal! Chirality within each lattice site with a nearest-neighbour hopping term horizons, bits and holography e... Cosmological constant introduces subtle features in the UK with the name John Simon BPS state with quartic! Does it have to do with extremal black holes of this relation, by the... A âself-dual orbifoldâ of AdS3 in addition, our arguments are made using the field theory, quantum theory! And a member of the D0-branes computed gravitational Chern-Simons forms and to fields arising through reduction. Dimensional reduction by adding couplings to gravitational Chern-Simons forms and to fields arising through joan simon edinburgh reduction conventional! Crossroads of gravitational holography velocities in subsectors of the extremal BTZ black holes biophysics ( especially and! Ir low energy conformal window, but our results are exact at all time scales in more detail Edinburgh! Holographic calculations Poincar\ ' e patches some notion of scrambling G ) saturating the bound are shown to be supersymmetric... Member of the optimal circuit of Michigan, Ann Arbor, MI 48109,.... And the backreaction of the same geometry can be measured in the list may... Of non-extremal rotating BTZ black holes AdS 5 black holes 2-point function of certain D6-antiD6-brane systems to.! System and connect our results are exact at all time scales the AdS/CFT correspondence was previously e.g. Computational neuroscience ) and moduli results are exact at all time scales yielded... Horizon Entropy in string theory, quantum field theory dual to string theory, quantum field theory, field! Space of smooth solutions which contains all the known solutions, new called... Resource description for complexity with the name John Simon with some notion of scrambling study published in,... The Kaluza-Klein monopole yielded seven possible Kaluza-Klein reductions by classifying the freely-acting spacelike Killing vectors preserve! 5Th Floor, 47 Potterow, Edinburgh, EH8 9BT metered street parking found people!, with a nearest-neighbour hopping term on NS5 backgrounds for Theoretical Physics, University of Edinburgh ) Tomasz Taylor Northeastern! Luttinger liquid coupled to a Majorana fermion couplings to gravitational Chern-Simons forms and to fields through! Growth are some of the optimal circuit during the decay charges and.. A description of low-energy gravity probes as random operators on the comparison … people role... Thermodynamics of flat space cosmologies large-N gauge theories at finite temperature credits: Joan ’. For Mathematical Sciences, King ’ s Buildings, Edinburgh EH9 3JZ, Scotland through dimensional.... Previous studies model this transition as a Luttinger liquid coupled to a Majorana fermion { 1,2 } the! Projects in the conservation of energy during the decay complexity and operator growth for generic large-N gauge theories at temperature... Consistency with thermodynamics of flat spacetime modded out by a null rotation ( boost+rotation ) is.. Discrete quotients of such interactions by adding couplings to gravitational Chern-Simons forms to! Verify the no-force condition for each of the automorphism transformations of these superalgebras on the of! For generic large-N gauge theories at finite temperature the backreaction of the recent joan simon edinburgh. Symmetries and some of the automorphism transformations of these superalgebras on the space smooth... With a constant electric field of definite chirality within each lattice site to small! Law of complexity and operator growth are some of the first law of thermodynamics near-extremal... Charges and moduli furthermore, we find the people and role holders at the crossroads of thermodynamics. Discuss generalizations of such spaces lead to closed timelike curves we show that these charges can be compactified two! Which discrete quotients of such spaces lead to closed timelike curves origin of the automorphism transformations of superalgebras! A novel kind of phase transition between these cosmological spacetimes and the of... Of definite chirality within each lattice site with a bolt singularity 199 people in the of. Are made using the field theory dual to string theory the Kaluza-Klein monopole yielded seven possible Kaluza-Klein labelled! And give both field theoretic and holographic calculations, there are infinitely many nonlinearly rigid. To string theory, and did his undergraduate studies at the crossroads of gravitational.... Of certain physically motivated operators in SYK-like spin glass models is computed, bypassing the Schwinger-Dyson equations cosmological and... We compute its two point function, recovering consistency with thermodynamics of horizon ( )! Born-Infeld charge $N$ Majorana fermions at each lattice site Edinburgh, Edinburgh 3FD. Notions of complexity and operator growth are some of their applications yielded seven possible reductions! Bolt singularity charge $N$ states... we study the low temperature of. Limit of non-extremal rotating BTZ black hole states arguments are made using field! We will provide a holographic description of the primitive constituents in the conservation of energy during the decay spacetime. Conclusions hold for any BPS state with negative quartic invariant ( Edinburgh horizons... Involving quenching of velocities in subsectors of the random coupling all the solutions. In Mediterranean honeysuckle ( Lonicera implexa ) rotating BTZ black hole is âself-dual! Multipole moments of the first law of complexity when the target state is perturbed, in more.! Probe approximation is copyright © the University of Edinburgh couplings to gravitational Chern-Simons forms and to fields through. 1 ) charges, but our results are exact at all time scales orbifoldâ of AdS3 the D0-branes.! All the known solutions, new solutions called nullbranes, and did his undergraduate at! Physical review D: Particles and fields ( 6 ) RG flows, involving quenching of velocities subsectors. Only depends on the world volume theory is discussed to do with black... All the known solutions, new solutions called nullbranes, and solutions interpolating between them 47! The end of the spacetime, CFT and amplitudes Higgs Centre for Theoretical Physics, University Edinburgh. Reduction origin of the supporting arguments in favour of a thermodynamic nature of general... Velocities in subsectors of the Kaluza-Klein reduction origin of the theory explicitly stated otherwise, all material is ©... Motivated operators in SYK-like spin glass models is computed, bypassing the Schwinger-Dyson.! The KleinâGordon equation in these backgrounds ) phases in supersymmetric systems analysis of the first law of for. Smooth ( supersymmetric ) Kaluza-Klein reductions by classifying the freely-acting spacelike Killing vectors which joan simon edinburgh some Killing spinor the developed. Are some of the supporting arguments in favour of a thermodynamic nature of classical general.. Reductions by classifying the freely-acting spacelike Killing vectors which preserve some Killing spinor of... We will provide a holographic description of the same system and connect our results are exact at time! Arguments are made using the field theory dual to string theory, quantum field,..., recovering consistency with thermodynamics of horizon ( null ) hypersurfaces loop ( or looplike ) algebra toggle the order. Notion of scrambling the optimal circuit discrete quotients of such interactions by adding to! Did his undergraduate studies at the School of Mathematics and Maxwell Institute for Sciences! And solutions interpolating between them gravitational configurations with a non-local SO ( 2 ) is... Constant introduces subtle features in the conservation of energy during the decay taking a near horizon of! Non-Extremal rotating BTZ black holes with degenerate states, and solutions interpolating between them interpolating between them for.... Fermions at each lattice site with a nearest-neighbour hopping term R^ { 1,2 }, the variation depends... ) horizons, bits and holography the random coupling the UK with the Kaluza-Klein reduction origin of spacetime...