2016 - 2017 HEP Seminar Schedule

DateEvent TypeSpeakerTitle
08/16/2016HEP SeminarElena KokoulinaHigh multiplicity events in lepton, hadronic and nuclear interactions [ + Description ]
09/07/2016HEP SeminarCsaba CsakiDisplaced Higgs decays and flavor constraints in twin Higgs models [ + Description ]
09/14/2016HEP SeminarRachel RosenOn Black Holes in Massive Gravity: Exact Solutions, Horizons and the Massless Limit [ + Description ]
09/21/2016HEP SeminarDaniel JafferisTraversable wormholes via a double trace deformation [ + Description ]
09/28/2016HEP SeminarMarco FarinaTwin Higgs (Asymmetric) Dark Matter [ + Description ]
10/05/2016HEP SeminarAlexander PeninHigh energy limit of gauge theories beyond Sudakov approximation [ + Description ]
10/19/2016HEP SeminarMatthew ReeceExploring the Weak Gravity Conjecture [ + Description ]
10/26/2016HEP SeminarClaudio BunsterGravitational domain walls and the dynamics of G [ + Description ]
11/02/2016HEP SeminarGaston GiribetStringy Horizons [ + Description ]
11/09/2016HEP SeminarJnan MaharanaT-DUALITY AND SCATTERING OF STRINGY STATES [ + Description ]
11/30/2016HEP SeminarPaolo CreminelliRelaxing the cosmological constant [ + Description ]
12/06/2016HEP SeminarAaron PiercePheno and Vino Seminar [ + Description ]
12/14/2016HEP SeminarJiji FanUltralight repulsive dark matter [ + Description ]
02/01/2017HEP SeminarYonit HochbergNew Directions in Light Dark Matter Detection [ + Description ]
02/15/2017HEP SeminarDavid KutasovTT¯ Deformed CFT and Little String Theory [ + Description ]
02/22/2017HEP SeminarHsin-Chia ChengCollider signals of the twin Higgs Model and its UV completion [ + Description ]
03/01/2017HEP SeminarJustin KhouryNew Approaches to Dark Matter [ + Description ]
03/08/2017HEP SeminarRouven EssigDirect Detection of sub-GeV Dark Matter [ + Description ]
03/22/2017HEP SeminarLeonardo RastelliHow to succeed at holographic correlators without really trying [ + Description ]
03/29/2017HEP SeminarRaphael BoussoUniversal Bound on Communication [ + Description ]
04/05/2017HEP SeminarEder IzaguirreLow Energy Accelerator Probes of a Dark Sector [ + Description ]
04/12/2017HEP SeminarAndrea TesiCompositeness at the TeV scale [ + Description ]
04/19/2017HEP SeminarLam HuiTwo applications of Nambu-Goldstone bosons in cosmology [ + Description ]
04/26/2017HEP SeminarLasma AlberteHolographic massive gravity: solids and fluids [ -- Description ]

Description: We describe the use of massive gravity theories in the context of gauge/gravity duality as the gravity duals of boundary field theories with momentum dissipation. Of particular interest are massive gravities that correspond to effective field theories describing solids and fluids. The separation between the two can be done both at the level of the unbroken spacetime symmetries as well as concerning the elastic properties of the dual materials. We extract the elastic shear modulus of the black brane solutions in massive gravities of the solid and fluid type and show how it relates to the graviton mass term. We find that the elasticity is non-zero for solids and vanishes for fluids. We then show that the Kovtun-Son-Starinets lower bound on the viscosity to entropy density ratio holds in fluid systems but is clearly violated for solids. To further strengthen the claim that the materials dual to this type of massive gravities are solids, we investigate the spectrum of their quasi-normal modes. We see that by a proper choice of the theory a light transverse phonon—corresponding to the pseudo-Goldstone boson due to the spontaneous breaking of the translational invariance—can be present in the spectrum. (2:00 PM, 726 Broadway, 940, CCPP Seminar)
05/03/2017HEP SeminarAndrea ThammTBA [ + Description ]
05/17/2017HEP SeminarNima Arkani-HamedTBA [ + Description ]