PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE
Subscribe to podcastQuantum Information in Quantum Gravity II
Organizer(s):
Collection URL: http://pirsa.org/C15041
| start | 1 | 2 | 3 | >> |
 | Gravity Dual of Quantum Information Metric Speaker(s): Tadashi Takayanagi
Abstract: We study a quantum information metric (or fidelity susceptibility) in conformal field theories with respect to a small perturbation by a primary operator. We argue that its gravity dual is approximately given by a volume of maximal time slice in an AdS spacetime when the perturbation is exactly marg... read more
Date: 17/08/2015 - 9:05 am
Collection: Quantum Information in Quantum Gravity II
|
 | A new perspective on holographic entanglement Speaker(s): Matthew Headrick
Abstract: We will present a reformulation of the Ryu-Takayanagi holographic entanglement entropy formula which does not involve the areas of surfaces. The reformulation leads to a picture of entanglement entropy of boundary regions being carried by Planck-thickness "bit threads" in the bulk. We will argue tha... read more
Date: 17/08/2015 - 11:00 am
Collection: Quantum Information in Quantum Gravity II
|
 | Universal holographic description of CFT entanglement entropy Speaker(s): Thomas Faulkner
Abstract: The Ryu-Takayanagi proposal (and generalizations) for holographic entanglement makes predictions for geometric CFT entanglement entropy (EE) that continue to hold for any CFT, regardless of existence of large-N limit or strong coupling. We establish this using a direct field theory calculation, thu... read more
Date: 17/08/2015 - 2:00 pm
Collection: Quantum Information in Quantum Gravity II
|
 | Geometric Constructs in AdS/CFT Speaker(s): Veronika Hubeny
Abstract: TBA
Date: 17/08/2015 - 4:00 pm
Collection: Quantum Information in Quantum Gravity II
|
 | Do black holes create polyamory Speaker(s): Jonathan Oppenheim
Abstract: Of course not, but if one believes that information cannot be destroyed in a theory of quantum gravity, then we run into apparent contradictions with quantum theory when we consider evaporating black holes. Namely that the no-cloning theorem or the principle of entanglement monogamy is violated. Her... read more
Date: 17/08/2015 - 5:00 pm
Collection: Quantum Information in Quantum Gravity II
|
 | Tensor Network Renormalization and the MERA Speaker(s): Glen Evenbly
Abstract: I describe a class of non-perturbative renormalization group (RG) transformations which, when applied to the (discrete time) Euclidean path integrals of a quantum systems on the lattice, can give results consistent with conformal transformations of quantum field theories. In particular, this class o... read more
Date: 18/08/2015 - 9:00 am
Collection: Quantum Information in Quantum Gravity II
|
 | Entanglement renormalization for quantum fields Speaker(s): Jutho Haegeman
Abstract: The Multiscale Entanglement Renormalization Ansatz has proven to capture the ground state properties of strongly correlated quantum lattice systems, both in gapped regimes and at critical points, and realizes a lattice version of the holographic principle. In this talk, I will review a construction ... read more
Date: 18/08/2015 - 11:00 am
Collection: Quantum Information in Quantum Gravity II
|
 | Holographic quantum error-correcting codes: Toy models for the bulk/boundary correspondence Speaker(s): Fernando Pastawski
Abstract: In this talk I will introduce a family of exactly solvable toy models of a holographic correspondence based on a novel construction of quantum error-correcting codes with a tensor network structure. The building block for these models are a special type of tensor with maximal entanglement along any ... read more
Date: 18/08/2015 - 2:00 pm
Collection: Quantum Information in Quantum Gravity II
|
 | The Holographic Entropy Cone Speaker(s): Ning Bao
Abstract: We initiate a systematic enumeration and classification of entropy inequalities satisfied by the Ryu-Takayanagi formula for conformal field theory states with smooth holographic dual geometries. For 2, 3, and 4 regions, we prove that the strong subadditivity and the monogamy of mutual information gi... read more
Date: 18/08/2015 - 4:00 pm
Collection: Quantum Information in Quantum Gravity II
|
 | Spread of entanglement and causality Speaker(s): Mark Mezei
Abstract: We investigate causality constraints on the time evolution of entanglement entropy after a global quench. We analyze three models for the spread of entanglement: holographic quenches, the free particle streaming model of Calabrese and Cardy generalized to higher dimensions and an arbitrary pattern o... read more
Date: 18/08/2015 - 4:30 pm
Collection: Quantum Information in Quantum Gravity II
|
| start | 1 | 2 | 3 | >> |
