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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C14025 - Low Energy Challenges for High Energy PhysicistsPODCAST Subscribe to podcast

Low Energy Challenges for High Energy Physicists

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Collection URL: http://pirsa.org/C14025


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PIRSA:14050095  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Wilsonian and Large N Approaches to Non-Fermi Liquids
Speaker(s): Liam Fitzpatrick
Abstract: We study the problem of metals near a quantum critical point using a local Wilsonian effective field theory of Fermi surface fermions coupled to massless boson (i.e. order parameter) fields, in particular in a large N limit where the boson is matrix-valued. We focus on regions of parameter space whe... read more
Date: 26/05/2014 - 9:05 am

PIRSA:14050096  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Sudakov Form Factor and Von-Hove Singularities
Speaker(s): Ira Rothstein
Abstract: In this talk I will discuss the analogies between high energy scattering of nucleons and Fermi Liquid theory. In particular I will elucidate the relation between the rapidity renormalization group utilized in such observables as transverse momentum distribution and the effect of Von-Hove singulariti... read more
Date: 26/05/2014 - 10:30 am

PIRSA:14050148  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Nambu–Goldstone bosons: classification and effective actions
Speaker(s): Tomas Brauner
Abstract: I will review the development in understanding Nambu–Goldstone bosons in quantum many-body systems. Particular emphasis will be put on two topics of my recent work: spontaneous breaking of spacetime symmetries and construction of topological effective Lagrangians.
Date: 26/05/2014 - 11:30 am

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:14050099  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Quantum Magnetic Phenomena: From QCD to Dirac semimetals
Speaker(s): Igor Shovkovy
Abstract: Studies of relativistic matter in strong magnetic fields attracted a lot of attention in recent years. Such studies are primarily motivated by the phenomenology of compact stars, the evolution of the Early Universe, and the physics of relativistic heavy ion collisions. Additionally, the outcomes of ... read more
Date: 26/05/2014 - 4:00 pm

PIRSA:14050100  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Visualizing Quantum Matter
Speaker(s): J.C Seamus Davis
Abstract: Recently developed techniques allow imaging of electronic quantum matter directly at the atomic scale. I will introduce the basic principles and describe the set of observables available from these techniques. As examples, I will survey visualization of exotic forms of electronic quantum matter incl... read more
Date: 27/05/2014 - 9:00 am

PIRSA:14050101  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Effective field theory of two-dimensional nonrelativistic chiral superfluid
Speaker(s): Sergej Moroz
Abstract: Due to the current search of Majorana fermions, the physics of two-dimensional identical fermions with short-range p-wave interactions is of considerable interest. My talk will be about the effective theory of a chiral p+ip fermionic superfluid at zero temperature. This theory naturally incorporates... read more
Date: 27/05/2014 - 10:30 am

PIRSA:14050102  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Universal incoherent metallic transport
Speaker(s): Sean Hartnoll
Abstract: In an incoherent metal, transport is controlled by the collective diffusion of energy and charge rather than by quasiparticle or momentum relaxation. We explore the possibility of a universal bound D gtrsim hbar v_F^2 /(k_B T) on the underlying diffusion constants in an incoherent metal. Such a boun... read more
Date: 27/05/2014 - 11:30 am

PIRSA:14050137  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Some Exact Results for Conformal Field Theories in d>2
Speaker(s): Zohar Komargodski
Abstract:
Date: 27/05/2014 - 4:00 pm

PIRSA:14050136  ( MP4 Medium Res , MP3 , PDF ) Which Format?
From scale invariance to Lorentz symmetry
Speaker(s): Sergey Sibiryakov
Abstract: I will discuss the enhancement of space-time symmetries to Lorentz (rotation) invariance at the renormalization group fixed points of non-relativistic (anisotropic) field theories. Upon describing examples from the condensed matter physics, I will review the general argument for the stability of the... read more
Date: 28/05/2014 - 9:00 am

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