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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Guifre Vidal


Perimeter Institute Pedagogical Introduction: Tensor Networks and Geometry, the Renormalization Group and AdS/CFT
Speaker(s): Guifre Vidal
Abstract: One might be confused by the proliferation of tensor network states, such as MPS, PEPS, tree tensor networks [TTN], MERA, etc. What is the main difference between them? In this talk I will argue that the geometry of a tensor network determines several properties of the state that is being represente... read more
Date: 25/10/2011 - 9:00 am

Pedagogical Introduction to Tensor Networks: MPS, PEPS and MERA
Speaker(s): Guifre Vidal
Abstract: This introductory talk aims to answer a few basic questions (What is a tensor network? Under which circumstance is a tensor network useful?) and describe the tensor network states that will be discussed during the workshop (matrix product state [MPS], projected entangled pair states [PEPS], and the ... read more
Date: 24/10/2011 - 9:00 am

Researcher Presentation: Guifre Vidal
Speaker(s): Guifre Vidal
Abstract:
Date: 31/08/2011 - 2:30 pm

Entanglement renormalization and gauge symmetry
Speaker(s): Guifre Vidal
Abstract: A lattice gauge theory is described by a redundantly large vector space that is subject to local constraints, and it can be regarded as the low energy limit of a lattice model with a local symmetry. I will describe a coarse-graining scheme capable of exactly preserving local symmetries. The approach... read more
Date: 25/05/2010 - 2:45 pm

Entanglement Renormalization, Quantum Criticality and Topological Order
Speaker(s): Guifre Vidal
Abstract: The renormalization group (RG) is one of the conceptual pillars of statistical mechanics and quantum field theory, and a key theoretical element in the modern formulation of critical phenomena and phase transitions. RG transformations are also the basis of numerical approaches to the study of low en... read more
Date: 23/01/2008 - 4:00 pm
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