PIRSA Logo


PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Brian Swingle


PIRSA:17040045  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor networks and Legendre transforms
Speaker(s): Brian Swingle
Abstract: Tensor networks have primarily, thought not exclusively, been used to the describe quantum states of lattice models where there is some inherent discreteness in the system. This raises issues when trying to describe quantum field theories using tensor networks, since the field theory is continuous (... read more
Date: 19/04/2017 - 2:00 pm

PIRSA:16070076  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Tensor Network Holography
Abstract:
Date: 28/07/2016 - 2:30 pm

PIRSA:14050150  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Informal Talk on geometry of tensor networks (MERA) and AdS/CFT
Speaker(s): Brian Swingle
Abstract: Brian Swingle obtained his PhD from MIT in 2011 and then moved to Harvard, where he is currently a Simons Fellow in condensed matter physics. Swingle is interested in the physics of quantum matter, and especially in the interface between condensed matter physics, quantum information science, and gra... read more
Date: 28/05/2014 - 4:30 pm

PIRSA:14050098  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Einstein's equations from qubits
Speaker(s): Brian Swingle
Abstract: I will outline a path by which a semi-classical geometry obeying Einstein's equations emerges holographically from elementary quantum mechanical objects undergoing local dynamics. The key idea is that entanglement between the quantum degrees of freedom leads to the emergence of a dynamical geometry,... read more
Date: 26/05/2014 - 2:30 pm

PIRSA:14020124  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Incoherent metals
Speaker(s): Brian Swingle
Abstract: I'll talk about some work in progress concerning the topic of metals which have no coherent quasiparticles. In particular, I'll compare and contrast the ubiquitous near horizon AdS2 region appearing in holographic models with a phase of matter called the spin incoherent luttinger liquid. By analyzin... read more
Date: 13/02/2014 - 11:00 am

PIRSA:13050027  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Asymmetry protected emergent E8 symmetry
Speaker(s): Brian Swingle
Abstract: The E8 state of bosons is a 2+1d gapped phase of matter which has no topological entanglement entropy but has protected chiral edge states in the absence of any symmetry.  This peculiar state is interesting in part because it sits at the boundary between short- and long-range entangled phas... read more
Date: 06/05/2013 - 4:00 pm

PIRSA:12110082  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Entanglement and the Fermi surface
Speaker(s): Brian Swingle
Abstract: In this talk I will describe my work characterizing quantum entanglement in systems with a Fermi surface.  This class includes everything from Fermi liquids to exotic spin liquids in frustrated magnets and perhaps even holographic systems.  I review my original scaling argument... read more
Date: 27/11/2012 - 3:30 pm

PIRSA:11120042  ( MP4 Medium Res , MP4 Low Res , MP3 , PDF ) Which Format?
Entanglement Spectrum from Geometry
Speaker(s): Brian Swingle
Abstract: The entanglement spectrum denotes the eigenvalues of the reduced density matrix of a region in the ground state of a many-body system. Given these eigenvalues, one can compute the entanglement entropy of the region, but the full spectrum contains much more information. I will review geometric method... read more
Date: 09/12/2011 - 2:30 pm

PIRSA:10100087  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Mutual information and the structure of entanglement in quantum field theory
Speaker(s): Brian Swingle
Abstract: In this talk I will describe my recent work on the structure of entanglement in field theory from the point of view of mutual information. I will give some basic scaling intuition for the entanglement entropy and then describe how this intuition is better captured by the mutual information. I will a... read more
Date: 26/10/2010 - 2:00 pm
Valid XHTML 1.0!