Regular Seminar Daniel Thompson (Swansea U.)

at:16:00
room G O Jones 610 | abstract: In this talk I shall give a review of two classes of integrable non-linear sigma models called \eta and \lambda deformations. Three reasons to be interested are 1) these are interesting examples of relatively rare integrable QFT displaying quantum group symmetries; 2) viewed as string theory sigma models they may have application to N=4 SYM via holography and 3) they provide concrete examples for generalised notions of T-duality. This talk will describe a variety of classical and quantum properties of these theories and their multi-parameter extensions drawing in part on arXiv:1711.00084; arXiv:1706.05322 |

Triangular Seminar David Tong (DAMTP)

at:15:00
room GO Jones Lecture Theatre | abstract: I'll give a basic introduction to particle-vortex duality in d=2+1 dimensions and its relation to 3d bosonization. |

Regular Seminar David Turton (Southampton University)

at:13:15
room K4.31 | abstract: The Information Paradox represents a strong consistency challenge for any quantum theory of gravity. The study of black hole internal structure in String Theory offers the potential to resolve this paradox. I will give an overview of recent work on constructing families of smooth horizonless supergravity solutions describing black hole microstates. Where applicable, I will present a holographic description of these solutions. I will also discuss the physics of an observer falling into a black hole. |

Regular Seminar James Drummond (U. Southampton)

at:14:00
room G O Jones 610 | abstract: I will describe how to recast perturbative quantumgravity using non-perturbative techniques from conformal field theory,focussing on the case of N=4 super Yang-Mills theory. By resolving thedegeneracy among double trace operators at large N we are able to bootstrapone-loop supergravity corrections from the OPE of the CFT. |

Journal Club Alejandro Cabo Bizet (KCL)

at:16:00
room S4.23 | abstract: Discuss 1710.09580 |