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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C20034 - Tensor Networks: from Simulations to Holography IIIPODCAST Subscribe to podcast

Tensor Networks: from Simulations to Holography III

Organizer(s): Lena Funcke   Michal Heller   Karl Jansen   Stefan Kuhn   Volker Schomerus   Sukhbinder Singh  

Collection URL: http://pirsa.org/C20034


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PIRSA:20110020  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor networks for LGT: beyond 1D
Speaker(s): Mari-Carmen Banuls
Abstract: The suitability of tensor network ansatzes for the description of physically relevant states in one dimensional lattice gauge theories (LGT) has been demonstrated in the last years by a large amount of systematic studies, including abelian and non-abelian LGTs, and including scenarios where traditio... read more
Date: 16/11/2020 - 8:00 am

PIRSA:20110018  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor networks for critical systems
Speaker(s): Frank Verstraete
Abstract: In this talk I will give an overview of tensor network approaches to critical systems. I will discuss entanglement scaling laws, show how PEPS can simulate systems with Fermi surfaces, and present some results for simulating systems in the continuum.
Date: 16/11/2020 - 9:00 am

PIRSA:20110019  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor network models of AdS/qCFT
Speaker(s): Jens Eisert
Abstract: "AdS/CFT endows gravity in anti-de Sitter (AdS) spacetime with a dual description in certain conformal field theories (CFTs) with matching symmetries. Tensor networks on regular discretizations of AdS space provide natural toy models of AdS/CFT, but break the continuous bulk symmetries. In this talk... read more
Date: 16/11/2020 - 1:00 pm

PIRSA:20110017  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Ancilla qubit wavefunctions for the pseudogap metal phase of the cuprates
Speaker(s): Subir Sachdev
Abstract: There is now significant experimental evidence that the physics of the underdoped cuprates is controlled by a metallic state with a Fermi surface whose volume does not equal the Luttinger value. However, there has been no proposed wavefunction for such a state for electrons in a single band. I will ... read more
Date: 16/11/2020 - 2:00 pm

PIRSA:20110022  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Cellular Automata, Tensor Networks, and Area Laws
Speaker(s): Ignacio Cirac
Abstract: Quantum Cellular Automata are unitary maps that preserve locality and respect causality. I will show that in one spatial dimension they correspond to matrix product unitary operators, and that one can classify them in the presence of symmetries, giving rise to phenomenon analogous to symmetry protec... read more
Date: 17/11/2020 - 8:00 am

PIRSA:20110023  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Fun with replicas and holographic tensor networks
Speaker(s): Michael Walter
Abstract:
Date: 17/11/2020 - 9:00 am

PIRSA:20110024  ( MP4 Medium Res , MP3 , PDF ) Which Format?
A tensor-network approach to fixed-point models of topological phases
Speaker(s): Andreas Bauer
Abstract: "I will introduce a tensor-network based language for classifying topological phases via fixed-point models. The "models" will be tensor networks formalizing a discrete Euclidean path integral living in a topological space-time, and can be obtained from Hamiltonian models by Trotterizing the imagina... read more
Date: 17/11/2020 - 1:00 pm

PIRSA:20110046  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Custom Fermionic Codes for Quantum Simulation
Speaker(s): Riley Chien
Abstract:
Date: 17/11/2020 - 1:15 pm

PIRSA:20110047  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Extremal Islands Made Easy: Complexity on the brane
Speaker(s): Shan-Ming Ruan
Abstract: We examine holographic complexity in the doubly holographic model to study quantum extremal islands. We focus on the holographic complexity=volume (CV) proposal for boundary subregions in the island phase. Exploiting the Fefferman-Graham expansion of the metric and other geometric quantities near th... read more
Date: 17/11/2020 - 1:30 pm

PIRSA:20110054  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Noise-robustness and experimental data of wavelet-DMERA preparation for critical Ising ground state
Speaker(s): Troy Sewell
Abstract: Multi-scale tensor networks offer a way to efficiently represent ground states of critical systems and may be adapted for state-preparation on a quantum computer. The tensor network for a single scale specifies a quantum channel whose fixed-point is a subregion of the approximate critical ground sta... read more
Date: 17/11/2020 - 1:45 pm

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