This institute may be found at Strand in Central London, just north of the Thames (map).
Getting to the Strand Campus:
Temple (District and Circle lines): 2 minute walk. Charing Cross (Bakerloo and Northern lines): 10 minute walk, Embankment (District, Circle and Bakerloo lines): 10 minute walk, Waterloo (Jubilee, Northern, Bakerloo, Waterloo & City lines): 12 minute walk, Holborn (Central and Picadilly lines): 12 minute walk,Chancery Lane (Central line): use exit 4  15 minute walk.
Charing Cross: 9 minute walk. Waterloo: 12 minute walk. Waterloo East: 10 minute walk. Blackfriars: 12 minute walk.
Buses stopping outside the College: 1, 4, 26, 59, 68, 76, X68, 168, 171, 172, 176(24 hour), 188, 243 (24 hour), 341 (24 hour), 521, RV1.
For more information about public transportations in London, please visit http://www.tfl.gov.uk.
Found at least 20 result(s)
Regular Seminar Sameer Murthy (King's College London)
at: 13:15 room K4.31  abstract: Supersymmetric localization is a powerful technique to evaluate a class of functional integrals in supersymmetric field theories. It reduces the functional integral over field space to ordinary integrals over the space of solutions of the offshell BPS equations. The application of this technique to supergravity suffers from some problems, both conceptual and practical. I will discuss one of the main conceptual problems, namely how to construct the fermionic symmetry with which to localize. I will show how a deformation of the BRST technique allows us to do this. I will then sketch a computation of the oneloop determinant of the supergraviton that enters the localization formula for BPS black hole entropy. 
Journal Club Chris Couzens (King's College)
at: 16:00 room S4.23  abstract: Review of 1710.03934v1 
Journal Club Rajesh Gupta (KCL)
at: 16:00 room S4.23  abstract: We will discuss "From 3d duality to 2d duality" https://arxiv.org/abs/1710.00926 by Aharony, Razamat and Willett. 
Regular Seminar Carlo Meneghelli (Oxford)
at: 13:15 room K4.31  abstract: Any four dimensional N=2 superconformal field theory (SCFT) contains a subsector of local operator which is isomorphic to a two dimensional chiral algebra. If the 4d theory possesses N=3 or N= 4 superconformal symmetry, the corresponding chiral algebra is an extension the N=2 or (small) N=4 superVirasoro algebra respectively. In this talk I will present some results on the classification of N=4 chiral algebras and discuss if they can correspond to a 4d theory. 
Regular Seminar Andrea Cavaglia (KCL)
at: 13:15 room K4.31  abstract: I will discuss integrability in the context of planar AdS4/CFT3, where the CFT is the socalled ABJ model depending on two t'Hooft couplings. When the two couplings are equal, this reduces to the ABJM theory, whose integrable structure is well understood but depends on an unspecified interpolating function of the coupling. I will motivate a proposal that the most general ABJ case is also integrable, and that the two coupling constants l1 and l2 recombine into a single interpolating function h( l1 , l2 ) , so that the spectrum is a function of h only. Extending and idea by N. Gromov and G. Sizov on the ABJM case, an explicit conjecture for the form of h(l1, l2) wil be made, based on the comparison between integrability and localization results. The talk is based on the paper hepth/1605.04888 with N. Gromov and F. LevkovichMaslyuk. 
Regular Seminar Alejandro CaboBizet (KCL)
at: 13:15 room K4.31  abstract: I will start by sketching the computation of the topologically twisted index on H2xS1 and its evaluation in ABJM theory in the large N limit with k=1. Then after, I will review the key points behind the construction of magnetically charged (hyperbolic) AdS4 black holes on STU gauged SUGRA and will conclude by stating how the aformentioned index  upon extremization  coincides with the entropy of the latter black holes in the large N limit (with k=1). 
Regular Seminar David Vegh (QMUL)
at: 13:15 room Segmented strings  abstract: The goal of this talk is twofold. Firstly, I would like to popularize the segmented string approach for solving the classical string dynamics on certain symmetric spacetimes where the string motion is integrable. This allows for an exact discretization which renders the equation of motion discrete in both space and time. The corresponding string solution is a segmented string. I will review the properties of segmented strings and relate them to discretetime Todatype lattices. The second goal of the talk is to understand a concrete setup: a (segmented) string hanging from the boundary of threedimensional AdS spacetime. According to the gauge/gravity duality, the string in the bulk is dual to a flux tube between a quarkantiquark pair in the boundary field theory. We assume that the string is initially (quasi)static. Perturbing one of the endpoints creates a large propagating wave on the string. The nonlinear timeevolution produces a number of interesting phenomena: energy cascades, paircreation of cusps, and evaporating regions on the string. If time permits, I will also talk about the string worldsheet as a simple model for gravity, chaos, outoftimeorder fourpoint functions, and segmented membranes. 
Exceptional Seminar Simon Wood (Cardiff)
at: 15:00 room S4.29  abstract: Given some chiral conformal field theory (also known as a vertex operator algebra in the mathematics literature), a natural but highly nontrivial task is to classify its representation theory. In this talk, I will use some well known examples of conformal field theories, such as the Virasoro minimal models, to show how certain hard questions in representation theory can be neatly rephrased as comparatively easy questions in the theory of symmetric polynomials. After a brief overview of the theory of symmetric polynomials, I will show how they can be used to classify irreducible representations. 
Regular Seminar Christian Samann (Heriot Watt University)
at: 13:15 room G01 Norfolk Building  abstract: I present an extended version of Riemannian geometry suitable for the description of current formulations of double field theory (DFT). This framework is based on graded manifolds and it yields extended notions of symmetries, dynamical data and constraints. In special cases, we recover general relativity with and without 1, 2 and 3form gauge potentials as well as DFT. We believe that our extended Riemannian geometry helps to clarify the role of various constructions in DFT. For example, it leads to a covariant form of the strong section condition. Furthermore, it should provide a useful step towards global and coordinate invariant descriptions of T and Uduality invariant field theories. 
Triangular Seminar Carlos Mafra (U. Southampton)
at: 15:00 room S1.27 floor minus 1  abstract: I will give a pedagogical review of how the pure spinor formalism was used to obtain all treelevel amplitudes of the superstring, including all their alpha' corrections. 
Regular Seminar Ricardo Schiappa (Lisbon University)
at: 13:15 room G01 Norfolk Building  abstract: I will present a light introduction to resurgence, with applications in large N gauge theory and in string theory. 
Regular Seminar Ingo Runkel (Hamburg University)
at: 13:15 room G01 Norfolk Building  abstract:

Regular Seminar Georgios Papadopoulos (King's College London)
at: 13:15 room G01 Norfolk Building  abstract: I shall review proposals that have been made to patch doubled spaces and explain the difficulties that arise in an effort to achieve consistent patching. Then I shall propose a scheme based on Cspaces that leads to a consistent patching but requires additional coordinates to those of doubled spaces. The Tdual pairs are identified as subspaces of the gerbe in Cspaces. The talk is based on work done with Paul Howe, arXiv:1612.07968 [hepth]. 
Regular Seminar Anatoly Konechny (Heriot Watt University)
at: 13:15 room G01 Norfolk Building  abstract: Perturbing a CFT by a relevant operator on a half space and letting the perturbation flow to the far infrared we obtain an RG interface between the UV and IR CFTs. If the IR CFT is trivial we obtain an RG boundary condition. The space of massive perturbations thus breaks up into regions labelled by conformal boundary conditions of the UV fixed point. For the 2D critical Ising model perturbed by a generic relevant operator we find the assignment of RG boundary conditions to all flows. We use some analytic results but mostly rely on TCSA and TFFSA numerical techniques. We investigate real as well as imaginary values of the magnetic field and, in particular, the RG trajectory that ends at the YangLee CFT. We argue that the RG interface in the latter case does not approach a single conformal interface but rather exhibits oscillatory nonconvergent behaviour. 
Regular Seminar Gandalf Lechner (Cardiff University)
at: 13:15 room G01 Norfolk Building  abstract: In this talk, I will report on a research programme that addresses the problem of constructing integrable relativistic quantum field theories on twodimensional Minkowski space from their twobody Smatrix. The aims of this programme are thus identical to the form factor programme, but the tools are different: Instead of concentrating on a perturbative construction of the correlation functions of local fields, we construct a pair of "semilocal" quantum fields and use operatoralgebraic tools to study local fields/observables. This leads to a construction of many models, including the SinhGordon model. As another prominent example, I will also report on the status of the O(N) sigma models within this setting. 
Regular Seminar Prem Kumar (Swansea)
at: 13:15 room G01 Norfolk Building  abstract: We discuss examples of relevant deformations of known CFTs placed in de Sitter spacetime, possessing AdS gravity duals with Big Crunch singularities. We point out generic aspects of such dual backgrounds, including the behaviour in the vicinity of the singularity, holographic correlators in the geodesic approximation, and retarded correlators in an analytically tractable example within the AdS_4/CFT_3 context. We briefly describe an attempt to characterise the bulk crunch and its putative resolution within the O(N) vector model in 3D. 
Regular Seminar Tim Adamo (Imperial College)
at: 13:15 room G01 Norfolk Building  abstract: In recent years, there has been significant process in the study of perturbative field theory scattering amplitudes using certain 2d chiral, firstorder CFTs known as 'ambitwistor string theories.' After a brief review of the ambitwistor setup, I will introduce a related family of 2d CFTs, which can be viewed as constrained ambitwistor strings. These new models describe holomorphic maps from the Riemann sphere to the projective null cone in Ddimensional Minkowski space. This target space is the natural setting to describe field theories with (classical) conformal invariance in (D2)dimensions. Killing the anomalies associated with these models fixes critical dimensions for which three wellknown spacetime field theories (biadjoint cubic scalar, gauge theory, gravity) are conformal. Furthermore, the spectrum of each model contains all single field insertions, along with their conformal descendants, of the correct scaling dimension. Time permitting, I will also outline how the spacetime 3point functions can be obtained from the 3point correlators on the Riemann sphere. 
Triangular Seminar Vasileios Niarchos (Durham)
at: 15:00 room S1.06 STRAND BLDG  abstract: Berry phase is a wellknown feature of quantum mechanics. In this talk I will discuss the lessexplored subject of Berry phase in quantum field theory. We will see that even simple quantum field theories can exhibit nontrivial Berry phases, and will discuss an explicit example in axion electrodynamics. We will also discuss a general relation between the Berry connection in conformal field theories with nontrivial conformal manifolds and the connections previously considered by several authors in conformal perturbation theory. The implementation of this relation in 2d N=(2,2) and 4d N=2 superconformal field theories leads to a useful rederivation of the tt* equations. 
Triangular Seminar Valentina Forini (Humboldt, Berlin)
at: 16:30 room S1.06 STRAND BLDG at KCL  abstract: String sigmamodels relevant in AdS/CFT are highly nontrivial twodimensional field theories for which predictions at finite coupling assume integrability and/or the duality itself. In this framework, I will discuss progress on how to extract finite coupling information via the use of lattice field theory methods. 
Regular Seminar Alberto Zaffaroni (Milan Bicocca)
at: 13:15 room G01 Norfolk Building  abstract: One of the great success of string theory is the microscopical explanation of the entropy of a class of asymptotically flat black holes. Much less is known about asymptotically AdS black holes in four dimensions or higher. In this talk I explain how to derive the entropy of a class of asymptotically AdS supersymmetric black holes in four dimensions using holography. The counting of black hole microstates is related to a counting of states in the dual 3d gauge theory which can be explicitly performed using localization. 