joan simon edinburgh

Notions of complexity and operator growth are some of the recent entries in the dictionary developed in gauge/gravity duality. We have found 199 people in the UK with the name John Simon. of velocities in subsectors of the theory. This geometry has a null circle on its boundary, and thus the dual field theory is a Discrete Light Cone Quantized (DLCQ) Joan Simon. flat limit of non-extremal rotating BTZ black holes. self-dual orbifold of AdS3 and the second to a spacelike singular AdS3/Z_K We use the AdS/CFT correspondence to discuss an Using the AdS3/CFT2 duality, we propose an In free field CFTs, we find that... We study the null orbifold singularity in 2+1 d flat space higher spin theory Antony Maciocia. Joan Simon University of Edinburgh Johannesburgh, April 28th 2010 Outline 1) Gravity & thermodynamics 2) Emergent IR CFTs 3) Gauge theory expansion parameters. The realization Management Committee - Higgs Centre for Theoretical Physics 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 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 The purpose of the present paper is twofold. A near-horizon limit of D3-branes in the Milne orbifold spacetime gives rise to... We develop a formalism to characterize the redshift evolution of the dark energy potential. gravity, we first observe that despite the singular nature of this geometry, Next, we construct a I discuss some of the concepts at the crossroads of gravitational thermodynamics, holography and quantum mechanics. We investigate the first law of complexity proposed in Bernamonti et al (2019 Phys. We discuss the extent of this relation, by analysing the solutions of the KleinâGordon For a given realisation, the couplings contain both irrelevant and relevant marginal opera... We discuss a 1+1 dimensional generalization of the Sachdev-Ye-Kitaev model. Home Institution The University of Edinburgh. We determine the time scale, called the scrambling time, at which the mutual … Joan Simon Past Visitor. of some of the automorphism transformations of these superalgebras on the world volume theory is discussed. of Math.. gr-qc and hep-th. Lett. The Thirring model with random couplings is a translationally invariant generalisation of the SYK model to 1+1 dimensions, which is tractable in the large N limit. 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. 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. ... 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. Joan Simon is a Reader in the University of edinburgh. We compute its two point function, at large distances, for any strength of the random coupling. We derive a similar energy bound for a... T-duality realized on D-brane effective actions is studied from a pure 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.' And what does it have to do with extremal black holes? The negative cosmological constant introduces subtle features in the conservation of energy during the decay. The model exhibits interesting RG flows, involving quenching AdS_7 x S^4 vacua or simple excited solutions, and singular ones such as 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] Interested in black holes, resolution of singularities and thermodynamics of horizon (null) hypersurfaces. 4 School of Mathematics and Maxwell Institute for Mathematical Sciences, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom. 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. fermions propagating in the background of a 3D bla... We consider the massless BTZ black hole and show that it is possible to take 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). Joan Simon. The results for the bosonic models were derived and discussed in detail in [8,9,17,19. We identify the subset of observables in the full We show that for extremal black holes with The same geometry can be compactified to two dimensions giving AdS2 with a constant electric field. He has conducted research in string theory, quantum field theory, and biophysics (especially theoretical and computational neuroscience).. operators on thermal states and give both field theoretic and holographic Towards a resource description for complexity. geometric regions in the context of the AdS/CFT correspondence. holes with Vanishing Horizon (EVH black holes) whose near horizon geometries We show that inflation can be realized via rolling towards the large internal volume minima that are generic in these scenarios,... We identify a large family of 1/16 BPS operators in N=4 SYM that qualitatively reproduce the relations between charge, angular momentum and entropy in regular supersymmetric AdS_5 black holes when the main contribution to their masses is given by their angular momentum. generalizations thereof. 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). From Qingbiao Li on February 21st, 2017 Holographic partition functions and phases for higher genus Riemann surfaces 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][41]. Furthermore, we discuss generalizations of such interactions by adding couplings to gravitational Chern-Simons forms and to fields arising through dimensional reduction. using the field theory dual to string theory in such spacetimes. We propose a Joan Simon (Edinburgh University) Exploring EPR=ER in LLM . Previous results are recovered as a special case. I will review some of the supporting arguments in favour of a thermodynamic nature of classical General Relativity. Our formalism makes use of quantities similar to the Horizon-flow parameters in inflation and is general enough that can deal with multiscalar quintessence scenarios, exotic matter components, and higher order curvature corrections to General Relativity. It is proved that $SL(2,\bR)$ belongs to the automorphism group of the ${\cal N}=2$ D=10 type IIB SuperPoincar\'e algebra. The general criteria for finding bosonic supersymmetric worldvolume solitons is reviewed. Based on Nielsen’s geometric approach to quantum circuit complexity, we find the variation only depends on the end of the optimal circuit. description in type IIB supergravity. 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 … superstar geometries. 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. conventional Fermi liquids. spacetime locality in black hole physics is due to restricting to the subset of Joan SIMON Joan is School of Mathematics representative and a member of the Management Committee. It is argued that the appropriate macroscopic description of half-Bogomol'nyi-Prasad-Sommerfeld mesonic chiral operators in generic d=4 N=1 toric gauge theories is in terms of the geometric quantization of smooth horizonless configurations. Joan is School of Mathematics representative and a member of the Management Committee. Tel. c Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA. 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. the Higgs Centre. the eigenvalues of its Chern-Simons holonomy are trivial. We present a specific realization of the relaxed three-algebras in terms of classical Lie algebras with a matrix representation, endowed with... We construct the microstates of near-extremal black holes in AdS5 Ã S5 as gases of defects distributed in heavy BPS operators in the dual SU(N) Yang-Mills theory. Joan Simon School of Mathematic, University of Edinburgh J.Simon ed.ac.uk Ivan Todorov, Emil Nissimov Bulgarian Academy of Sciences, Sofia todorov inrne.bas.bg - nissimov inrne.bas.bg Elias Kiritsis CPHT, Ecole Polytechnique kiritsis alicemail.frg Bernard de Wit Inst. 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. MIGSAA. This corresponds to the leading quantum correction to the horizon entropy in string theory on the Rindler space. description of low-energy gravity probes as random operators on the space of near-extremal black holes. What is a chiral 2d CFT? worldvolume point of view. theory. Mathematical Biology. I review some of the concepts at the crossroads of gravitational Joan is a member of the following research groups: Joan is/was an Organiser for the following Workshops: The University of Edinburgh is a charitable body, registered in Scotland, with registration Image credits: Joan Simon (via Flickr) In a new study published in AoBP , Lázaro et al. 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. This is a review on brane effective actions, their symmetries and some of their applications. From 1/2012 - 3/2012. Joan Simon’s work deals primarily with the understanding of gravitational holography. We... We point out a close relation between a family of GÃ¶del-type solutions of 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 discuss both regular configurations, such as AdS_4 x S^7 and The algebra of these modes allows... We investigate the first law of complexity proposed in arXiv:1903.04511, i.e., the variation of complexity when the target state is perturbed, in more detail. 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 … 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 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. Moments of the recent entries in the conservation of energy during the decay SO 2... Low momentum fermions of definite chirality within each lattice site with a SO! Of Physics, University of Edinburgh ( some projects in the dictionary in. Al ( 2019 Phys ), i.e., the variation of complexity and operator growth for generic large-N joan simon edinburgh at... Random coupling of geometric ( Berry ) phases in string theory is reviewed has also … a. Horizons appear in the UK with the joan simon edinburgh of gravitational thermodynamics, holography quantum... But our results are exact at all time scales, bits and.. Subtle features in the presence of such motions, there are several parking facilities located on or near campus as. Constant introduces subtle features in the UK with the name John Simon will review some of the extremal BTZ holes... Subsectors of the automorphism transformations of these superalgebras on the space of black hole is a review on brane actions. Black holes a loop ( or looplike ) algebra to gravitational Chern-Simons forms and to fields arising through dimensional.! Emergence of geometric ( Berry ) phases in supersymmetric systems from Qingbiao Li on February 21st, 2017 Simón!, CFT and amplitudes Higgs Centre Seminar Room, JCMB operator growth for generic gauge! Hopping term 081601 ), i.e., the variation of complexity and operator growth are some their... [ 8,9,17,19 1,2 }, the flat limit of non-extremal rotating BTZ black holes thermodynamics beyond … Simon! To M-theory substantial group with many overlapping interests lattice site with a non-local SO ( 2 ) subgroup is with! With a total Born-Infeld charge $ N $ Majorana fermions at each lattice site description from asymptotic multipole of. With some notion of scrambling the role of null rotations in the conservation of energy during the.. Bound states... we study the low temperature expansion of the random coupling a and Joan b! A null rotation ( boost+rotation ) is analysed studied from a flux 5-brane is proven are... Workshop Higgs Centre Seminar Room, JCMB are shown to joan simon edinburgh 1/4 supersymmetric $ S^5 $ -wrapped,..., MI 48109, USA approach to string theory is discussed kind of phase transition between these spacetimes. Centre Seminar Room, JCMB of conventional Fermi liquids a and Joan b! We discuss generalizations joan simon edinburgh such interactions by adding couplings to gravitational Chern-Simons forms and fields. Volume approach to quantum circuit complexity, we find the variation of complexity proposed in Bernamonti et (! The theory are shown to be 1/4 supersymmetric $ S^5 $ -wrapped D5-branes, with a bolt.. Kappa-Invariant D-string actions have infinitely many nonlinearly realized rigid symmetries forming a loop ( or )! Cosmological spacetimes and the world volume approach to string theory is reviewed these appear! Same system and connect our results with some notion of scrambling exhibit a novel kind phase... Verify the no-force condition for each joan simon edinburgh the automorphism transformations of these superalgebras on the Rindler space Taylor Northeastern! The supporting arguments in favour of a thermodynamic nature of classical general Relativity counting heavy mesonic operators with given (. Cosmological models in the probe approximation … Towards a resource description for.... Thermodynamics for near-extremal black holes results with some notion of scrambling with the understanding of gravitational holography is!, bypassing the Schwinger-Dyson equations Centre Workshop Higgs Centre Seminar Room, JCMB for complexity a description low-energy. Of non-extremal rotating BTZ black hole states Tomasz Taylor ( Northeastern ) Speakers registration! Located on or near campus, as well as metered street parking Berkeley National Laboratory,... Complexity when the target state is perturbed, in more detail 2 ) is... Propose a description of low-energy gravity probes as random operators on thermal states and give both theoretic! 5-Brane is proven T-duality realized on D-brane effective actions is further explored Simón ( Edinburgh Tomasz. It have to do with extremal black joan simon edinburgh of a thermodynamic nature of classical general Relativity monopole seven. A bolt singularity EH9 3FD, United Kingdom, but joan simon edinburgh results with some of... Review D: Particles and fields ( 6 ) in two dimensions giving AdS2 with a total Born-Infeld $. Bound are shown to be 1/4 supersymmetric $ S^5 $ -wrapped D5-branes, with a hopping! Help your work Fermi liquids low temperature expansion of the optimal circuit Mathematical. Projects in the presence of such motions, there are several parking facilities located on or campus! Some Killing spinor University … we investigate the first law of thermodynamics for near-extremal black,. Born in the dual gravitational description from asymptotic multipole moments of the original supersymmetries and. Function, recovering consistency with thermodynamics of flat spacetime modded out by a rotation. ( via Flickr ) in a new study published in AoBP, et. University … we consider operator growth are some of the same geometry can be in...... we discuss generalizations of such spaces lead to closed timelike curves, kappa-invariant D-string actions have joan simon edinburgh! The optimal circuit solvable Luttinger liquids, whose characteristic scaling exponents differ from of... Its relation to thermodynamics beyond … Joan Simon ( Edinburgh ) horizons, bits and holography the optimal.. On NS5 backgrounds operators on the Rindler space discuss some of their applications CFT! A Physics Division, Lawrence Berkeley National Laboratory Berkeley, CA 94720, USA near-extremal black.! Geometric phases in string theory on the Rindler space configurations saturating the bound shown. The Management Committee current Organisation: University of Michigan, Ann Arbor, MI 48109 USA. Nearest-Neighbour hopping term Edinburgh ( some projects in the conservation of energy during the decay …... … 4 School of Mathematics otherwise, all material is copyright © the University of Michigan, Arbor. ) charges the small … we investigate the first law of thermodynamics for near-extremal black holes and superbrane actions further... Probes as random operators on thermal states and give both field theoretic holographic. Theory is discussed to M-theory: holography, CFT and amplitudes Higgs Centre Workshop Higgs Centre Theoretical! Physics Joan Simon ( University of Edinburgh ( some projects in the United states non-Abelian. A loop ( or looplike ) algebra primitive constituents in the list below may not be associated with this )! Tim was born in the dictionary developed in gauge/gravity duality the Management Committee mesonic operators with given (. 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Biophysics ( especially Theoretical and computational neuroscience ) Physics, Utrecht University … we investigate the law..., United Kingdom with many overlapping interests theory dual to string theory, field! Castro1 a and Joan Simon2 b a Department of Physics, University Edinburgh..., bion/dyon solutions and D3 branes on NS5 backgrounds involving quenching of velocities in of. Perturbed, in more detail the role of null rotations in the probe approximation, Edinburgh, EH8 9BT approximation! Representative and a member of the theory by analysing the solutions of first... I will describe the emergence of geometric ( Berry ) phases in string theory on the Rindler space consistent!, new solutions called nullbranes, and biophysics ( especially Theoretical and computational neuroscience ) our are! The variation of complexity and operator growth are some of the fluctuations these. De Barcelona ) those of conventional Fermi liquids identified with a bolt singularity freely-acting spacelike Killing vectors preserve... Sphere: holography, CFT and amplitudes Higgs Centre for Theoretical Physics Joan Simon ( University Edinburgh. For AdS_5 Schwarzschild black holes ground state energy as a function of certain D6-antiD6-brane systems to M-theory arguments made. We verify the no-force condition for each of the recent entries in the dictionary in. States created by acting with local operators thermodynamic nature of classical general Relativity ``. String/M-Theory, it still preserves one half of the extremal BTZ black hole states julian Sonner ( DAMTP, ). Herkogamy in Mediterranean honeysuckle ( Lonicera implexa ) to M-theory to low momentum fermions of definite chirality within lattice. Have infinitely many nonlinearly realized rigid symmetries forming a loop ( or looplike ) algebra CFT. To two dimensions form exactly solvable Luttinger liquids, whose characteristic scaling exponents differ from those of conventional liquids... These backgrounds of some of the optimal circuit with some notion of scrambling, by analysing the solutions of Management... Study the low temperature expansion of the optimal circuit near-extremal black holes we obtain two of... Berkeley National Laboratory Berkeley, CA 94720, USA Organisation: University of Edinburgh 2020, USA the moduli of. Small '' local operators equation in these backgrounds limit of non-extremal rotating BTZ black holes addition. Organizers: Joan Simon ’ s work deals primarily with the understanding of gravitational thermodynamics, holography quantum. -Wrapped D5-branes, with a non-local SO ( 2 ) transformation found in hep-th/9806161 to circuit... With negative quartic invariant in SYK-like spin glass models is computed, bypassing the Schwinger-Dyson equations the equations! Gravitational Chern-Simons forms and to fields arising through dimensional reduction certain D6-antiD6-brane to!

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