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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Guifre Vidal


PIRSA:19060027  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Simulating an expanding universe on Google's Bristlecone
Speaker(s): Guifre Vidal
Abstract: I will describe a proposal to simulate MERA on Google's 72 qubit NISQ device known as Bristlecone, and explain how it can be the basis for simulating inflation in an early universe. Other applications of this proposal include benchmarking of the NISQ device, hybrid classical quantum optimizations an... read more
Date: 13/06/2019 - 9:30 am

PIRSA:17060071  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Introduction to Tensor Network methods - 4
Speaker(s): Guifre Vidal
Abstract:
Date: 20/06/2017 - 12:00 pm

PIRSA:17060070  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Introduction to Tensor Network methods - 3
Speaker(s): Guifre Vidal
Abstract:
Date: 20/06/2017 - 11:00 am

PIRSA:17060066  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tutorial: Introduction to Tensor Network methods
Abstract:
Date: 19/06/2017 - 3:45 pm

PIRSA:17060064  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Introduction to Tensor Network methods - 2
Speaker(s): Guifre Vidal
Abstract:
Date: 19/06/2017 - 12:00 pm

PIRSA:17060063  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Introduction to Tensor Network methods - 1
Speaker(s): Guifre Vidal
Abstract:
Date: 19/06/2017 - 11:00 am

PIRSA:17040038  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The continuous multi-scale entanglement renormalization ansatz (cMERA)
Speaker(s): Guifre Vidal
Abstract: The first half of the talk will introduce the cMERA, as proposed by Haegeman, Osborne, Verschelde and Verstratete in 2011 [1], as an extension to quantum field theories (QFTs) in the continuum of the MERA tensor network for lattice systems. The second half of the talk will review recent results [2] ... read more
Date: 19/04/2017 - 9:30 am

PIRSA:17020048  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 12
Speaker(s): Guifre Vidal
Abstract:

PEPS, branching MERA, TNs in statistical mechanics, TNs in holography

Date: 15/02/2017 - 9:00 am

PIRSA:17020047  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 11
Speaker(s): Guifre Vidal
Abstract:

Computational efficiency of MPS and MERA, scale invariance of MERA

Date: 14/02/2017 - 9:00 am

PIRSA:17020046  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 10
Speaker(s): Guifre Vidal
Abstract:

Matrix product states, low energy excited states and time evolution

Date: 13/02/2017 - 9:00 am

PIRSA:17020049  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 9
Speaker(s): Guifre Vidal
Abstract:

Matrix product states

Date: 10/02/2017 - 11:30 am

PIRSA:17020045  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 8
Speaker(s): Guifre Vidal
Abstract:

Basics of tensor networks 

Date: 10/02/2017 - 9:00 am

PIRSA:17020044  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 7
Speaker(s): Guifre Vidal
Abstract:

Entanglement entropy and universality, c-theorem

Date: 09/02/2017 - 9:00 am

PIRSA:17020043  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 6
Speaker(s): Guifre Vidal
Abstract:

Scaling of entanglement entropy

Date: 08/02/2017 - 9:00 am

PIRSA:17020042  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 5
Speaker(s): Guifre Vidal
Abstract:

Entanglement entropy for free fermionic systems

Date: 07/02/2017 - 9:00 am

PIRSA:17020040  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 4
Speaker(s): Guifre Vidal
Abstract:

Operator algebras, Majorana representation and Wick's theorem

Date: 03/02/2017 - 9:00 am

PIRSA:17020039  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 3
Speaker(s): Guifre Vidal
Abstract:

Reduced density matrix and charicterzation of entanglement

Date: 02/02/2017 - 9:00 am

PIRSA:17020038  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 2
Speaker(s): Guifre Vidal
Abstract:

Computational cost, power method, exact diagonalization and sparse vector update

Date: 01/02/2017 - 9:00 am

PIRSA:17010084  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2016/2017 - Condensed Matter (Review) - Lecture 1
Speaker(s): Guifre Vidal
Abstract:

Course outline, Ising CFT

Date: 30/01/2017 - 9:00 am

PIRSA:16110045  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor networks and the renormalization group
Speaker(s): Guifre Vidal
Abstract: Tensor networks offer an efficient representation of many-body wave-functions in an exponentially large Hilbert space by exploiting the area law of ground state quantum entanglement. I will start with a gentle introduction to the tensor network formalism. Then I will describe its application to real... read more
Date: 09/11/2016 - 2:00 pm
Series: Colloquium

PIRSA:16070046  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor Networks
Speaker(s): Guifre Vidal
Abstract:
Date: 27/07/2016 - 9:00 am

PIRSA:16070045  ( MP4 Medium Res , MP3 , PDF ) Which Format?
tensor networks for quantum fields: conformal invariance and emergent de Sitter space
Speaker(s): Guifre Vidal
Abstract: the multi-scale entanglement renormalization ansatz (MERA) is a tensor network that efficiently represents the ground state wave-function of a lattice Hamiltonian. Similarly, its extension to the continuum, the continuous MERA [proposed by Haegeman, Osborne, Verschelde and Verstraete, Phys. Rev. Let... read more
Date: 26/07/2016 - 5:00 pm

PIRSA:16040011  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 14
Speaker(s): Guifre Vidal
Abstract:
Date: 08/04/2016 - 10:15 am

PIRSA:16040010  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 13
Speaker(s): Guifre Vidal
Abstract:
Date: 07/04/2016 - 10:15 am

PIRSA:16040009  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 12
Speaker(s): Guifre Vidal
Abstract:
Date: 06/04/2016 - 10:15 am

PIRSA:16040008  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 11
Speaker(s): Guifre Vidal
Abstract:
Date: 05/04/2016 - 10:15 am

PIRSA:16040007  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 10
Speaker(s): Guifre Vidal
Abstract:
Date: 04/04/2016 - 10:15 am

PIRSA:16040006  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 9
Speaker(s): Guifre Vidal
Abstract:
Date: 01/04/2016 - 10:15 am

PIRSA:16030015  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 8
Speaker(s): Guifre Vidal
Abstract:
Date: 31/03/2016 - 10:15 am

PIRSA:16030014  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 7
Speaker(s): Guifre Vidal
Abstract:
Date: 30/03/2016 - 10:15 am

PIRSA:16030013  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 6
Speaker(s): Guifre Vidal
Abstract:
Date: 29/03/2016 - 10:15 am

PIRSA:16030012  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 5
Speaker(s): Guifre Vidal
Abstract:
Date: 28/03/2016 - 10:15 am

PIRSA:16030133  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 4
Speaker(s): Guifre Vidal
Abstract:
Date: 24/03/2016 - 10:15 am

PIRSA:16030010  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 3
Speaker(s): Guifre Vidal
Abstract:
Date: 23/03/2016 - 10:15 am

PIRSA:16030009  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 2
Speaker(s): Guifre Vidal
Abstract:
Date: 22/03/2016 - 10:15 am

PIRSA:16030008  ( MP4 Medium Res , MP3 , PDF ) Which Format?
PSI 2015/2016 - Explorations in Condensed Matter - Lecture 1
Speaker(s): Guifre Vidal
Abstract:
Date: 21/03/2016 - 10:15 am

PIRSA:15110068  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor network renormalization
Speaker(s): Guifre Vidal
Abstract:
Date: 05/11/2015 - 10:45 am

PIRSA:15090079  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor network renormalization
Speaker(s): Guifre Vidal
Abstract: I will present a pedagogical introduction on the application of tensor networks to the renormalization group. This program has resulted in a non-perturbative, real-space RG approach for lattice systems and the multi-scale entanglement renormalization ansatz (MERA). The MERA is currently of interest... read more
Date: 29/09/2015 - 9:00 am

PIRSA:15080049  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor network renormalization
Speaker(s): Guifre Vidal
Abstract: TBA
Date: 27/08/2015 - 9:15 am

PIRSA:15080047  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The multi-scale entanglement renormalization ansatz
Speaker(s): Guifre Vidal
Abstract: TBA
Date: 26/08/2015 - 11:00 am

PIRSA:15080041  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Ground state entanglement and tensor networks
Speaker(s): Guifre Vidal
Abstract: TBA
Date: 25/08/2015 - 9:15 am

PIRSA:15030091  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The renormalization group: a tensor network perspective
Speaker(s): Guifre Vidal
Abstract: A renormalization group transformation implements a scale transformation while resetting the UV cut-off, so that the theories before and after the RG transformation contain the same degrees of freedom, but with a modified action. In Wilson's original proposal, the cut-off is reset by integrating out... read more
Date: 12/03/2015 - 2:30 pm

PIRSA:14040067  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 15
Speaker(s): Guifre Vidal
Abstract:
Date: 04/04/2014 - 10:15 am

PIRSA:14040040  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 14
Speaker(s): Guifre Vidal
Abstract:
Date: 03/04/2014 - 10:15 am

PIRSA:14040039  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 13
Speaker(s): Guifre Vidal
Abstract:
Date: 02/04/2014 - 10:15 am

PIRSA:14040038  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 12
Speaker(s): Guifre Vidal
Abstract:
Date: 01/04/2014 - 10:15 am

PIRSA:14040037  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 11
Speaker(s): Guifre Vidal
Abstract:
Date: 31/03/2014 - 10:15 am

PIRSA:14040036  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 10
Speaker(s): Guifre Vidal
Abstract:
Date: 28/03/2014 - 10:15 am

PIRSA:14040032  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 9
Speaker(s): Guifre Vidal
Abstract:
Date: 27/03/2014 - 10:15 am

PIRSA:14040031  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 8
Speaker(s): Guifre Vidal
Abstract:
Date: 26/03/2014 - 10:15 am

PIRSA:14040030  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 7
Speaker(s): Guifre Vidal
Abstract:
Date: 25/03/2014 - 10:15 am

PIRSA:14040029  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 6
Speaker(s): Guifre Vidal
Abstract:
Date: 24/03/2014 - 10:15 am

PIRSA:14040026  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 5
Speaker(s): Guifre Vidal
Abstract:
Date: 21/03/2014 - 10:15 am

PIRSA:14040025  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 4
Speaker(s): Guifre Vidal
Abstract:
Date: 20/03/2014 - 10:15 am

PIRSA:14040024  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 3
Speaker(s): Guifre Vidal
Abstract:
Date: 19/03/2014 - 10:15 am

PIRSA:14040023  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 2
Speaker(s): Guifre Vidal
Abstract:
Date: 18/03/2014 - 10:15 am

PIRSA:14040022  ( MP4 Medium Res , MP3 , PDF ) Which Format?
13/14 PSI - Explorations in Condensed Matter - Lecture 1
Speaker(s): Guifre Vidal
Abstract:
Date: 17/03/2014 - 10:15 am

PIRSA:14020122  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Chiral spin liquid and emergent anyons in a Kagome lattice Mott insulator
Abstract: Topological phases in frustrated quantum spin systems have fascinated researchers for decades. One of the earliest proposals for such a phase was the chiral spin liquid put forward by Kalmeyer and Laughlin in 1987 as the bosonic analogue of the fractional quantum Hall effect. Elusive for many years,... read more
Date: 13/02/2014 - 9:00 am

PIRSA:13040061  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Explorations in Condensed Matter Lecture 15
Abstract:
Date: 26/04/2013 - 9:00 am

PIRSA:13040060  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Explorations in Condensed Matter Lecture 14
Abstract:
Date: 25/04/2013 - 9:00 am

PIRSA:13040059  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Explorations in Condensed Matter Lecture 13
Abstract:
Date: 24/04/2013 - 9:00 am

PIRSA:13040058  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Explorations in Condensed Matter Lecture 12
Abstract:
Date: 23/04/2013 - 9:00 am

PIRSA:13040057  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
12/13 PSI - Explorations in Condensed Matter Lecture 11
Abstract:
Date: 22/04/2013 - 9:00 am

PIRSA:10100098  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
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

PIRSA:11100075  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
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

PIRSA:11080143  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Researcher Presentation: Guifre Vidal
Speaker(s): Guifre Vidal
Abstract:
Date: 31/08/2011 - 2:30 pm

PIRSA:10050066  ( MP4 Medium Res , MP3 , PDF ) Which Format?
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

PIRSA:08010005  ( MP4 Medium Res , MP3 , PDF ) Which Format?
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

PIRSA:05020003  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Disentangling quantum systems: a new perspective in computational quantum physics
Speaker(s): Guifre Vidal
Abstract:
Date: 02/02/2005 - 3:50 pm
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