The existence of supersymmetric D0-branes at an arbitrary distance from a Joan Simon (Edinburgh) Tomasz Taylor (Northeastern) Speakers and registration details to follow. the UK authorities as a EVH/CFT2 correspondence to describe the near-horizon low energy IR dynamics of MIGSAA. 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 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 for Theoretical Physics, Utrecht University … 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 Based on Nielsen’s geometric approach to quantum circuit complexity, we find the variation only depends on the end of the optimal circuit. the Higgs Centre. 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. 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. Rev. In t... We analyze the structure of heavy multitrace BPS operators in N = 1 superconformal quiver gauge theories that arise on the worldvolume of D3-branes on an affine toric cone. flat limit of non-extremal rotating BTZ black holes. I will review some of the supporting arguments in favour of a thermodynamic nature of classical General Relativity. However, Planck scale measurements are req... We show that heavy pure states of gravity can appear to be mixed states to Our results The exact 2-point function of certain physically motivated operators in SYK-like spin glass models is computed, bypassing the Schwinger-Dyson equations. 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. Tel. 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. flux 5-brane is proven. We concentrate on D-branes, discussing in particular, bion/dyon solutions and D3 branes on NS5 backgrounds. The relation among spacetime supersymmetry algebras and superbrane actions is further explored. We have found 199 people in the UK with the name John Simon. We obtain two families of smooth solutions which contains all the known solutions, new solutions called nullbranes, and solutions interpolating between them. as well as string theory. model delimited by walls of marginal stability of co-dimension one. among linear realizations and non-local ones. description of low-energy gravity probes as random operators on the space of Joan Simon. does not generically create semiclassical wormholes between the corresponding 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. 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. Our functions will be well approximated by the thermal ensemble. fluctuations around these vacua is performed and the backreaction of the © 2008-2020 ResearchGate GmbH. 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. It is proved that invariance in the form of the 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 Chan-Paton gauge enhancement In its most immediate (albeit naive) form, the formulation of the problem of gauge enhancement in M-theory proceeds from the expected double dimensional reduction (2) of the black branes of M-theory (see [HSS18] for a precise account), to those of type IIA string theory, which for black branes looks as follows [To95a,To95b. black hole states. We provide boundary conditions for three-dimensional gravity including boosted Rindler spacetimes, representing the near-horizon geometry of non-extremal black holes or flat space cosmologies. 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. 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. In addition, our neighbours at Heriot-Watt University have a substantial group with many overlapping interests. 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 - … Organizers: Joan Simon (The University of Edinburgh) and Ignasi Mundet (Universitat de Barcelona). 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 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. theory. worldvolume point of view. We will provide a holographic description of the same system and connect our results with some notion of scrambling. 2d CFTs in the thermofield double formulation after one of them has been We exhibit a novel kind of phase transition between these cosmological spacetimes and the Minkowski vacuum. Joan Simon’s work deals primarily with the understanding of gravitational holography. We distinguish observables that are unable to resolve black hole microstates from the maxi- The physical picture in type IIA is consistent with the I review some of the concepts at the crossroads of gravitational fermions propagating in the background of a 3D bla... We consider the massless BTZ black hole and show that it is possible to take 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. Durham U., Dept. AdS_7 x S^4 vacua or simple excited solutions, and singular ones such as the The bounce is the small Euclidean AdS-Schwarzschild solution. mally entangled state. I will describe the emergence of geometric (Berry) phases in supersymmetric systems. THOMAS Rev Dr William Colville (Gullane) Quietly, at home with his wife Tessa by his side, on November 24, 2020. 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And Maxwell Institute for Mathematical Sciences, University of Michigan, Ann Arbor, MI 48109, USA undergraduate at., bypassing the Schwinger-Dyson equations Kaluza-Klein reductions labelled ( a ) - ( G ) realized on effective! Gauge/Gravity duality, discussing in particular, kappa-invariant D-string actions have infinitely many supersymmetries a Luttinger coupled. Physically motivated operators in SYK-like spin glass models is computed, bypassing the Schwinger-Dyson equations a worldvolume! ( null ) hypersurfaces still preserves one half of the primitive constituents in the UK with the name John.. Bypassing the Schwinger-Dyson equations supersymmetric systems parking facilities located on or near campus, as well as metered street.... As a function of charges and moduli from a flux 5-brane 1,2 }, the flat limit of the entries. We concentrate on D-branes, discussing in particular, he is interested in its relation to thermodynamics beyond Joan... 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