Format results
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Wilsonian and Large N Approaches to Non-Fermi Liquids
Liam Fitzpatrick - Boston University
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Sudakov Form Factor and Von-Hove Singularities
Ira Rothstein - Carnegie Mellon University
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Quantum Magnetic Phenomena: From QCD to Dirac semimetals
Igor Shovkovy - Western Illinois University
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Effective field theory of two-dimensional nonrelativistic chiral superfluid
Sergej Moroz - University of Washington
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Universal incoherent metallic transport
Sean Hartnoll - Stanford University
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Some Exact Results for Conformal Field Theories in d>2
Zohar Komargodski - Stony Brook University
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From scale invariance to Lorentz symmetry
Sergey Sibiryakov - McMaster University
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Quantum Turbulence
Russell Donnelly , Carlo Barenghi - Newcastle University
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Wilsonian and Large N Approaches to Non-Fermi Liquids
Liam Fitzpatrick - Boston University
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… -
Sudakov Form Factor and Von-Hove Singularities
Ira Rothstein - Carnegie Mellon University
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… -
Einstein's equations from qubits
Brian Swingle - Brandeis University
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… -
Quantum Magnetic Phenomena: From QCD to Dirac semimetals
Igor Shovkovy - Western Illinois University
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… -
Visualizing Quantum Matter
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… -
Effective field theory of two-dimensional nonrelativistic chiral superfluid
Sergej Moroz - University of Washington
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… -
Universal incoherent metallic transport
Sean Hartnoll - Stanford University
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… -
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From scale invariance to Lorentz symmetry
Sergey Sibiryakov - McMaster University
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… -
Quantum Turbulence
Russell Donnelly , Carlo Barenghi - Newcastle University
This hour will be devoted to a description of quantum turbulence,that is turbulence in superfluids. The first talk (~20 minutes) will be given by Russell Donnelly. He will describe briefly the problem of classical turbulence and how turbulence in superfluids is different. The second talk will be… -
What's wrong with Goldstone?
Hitoshi Murayama - University of Tokyo
Spontaneous Symmetry Breaking is a very universal concept applicable for a wide range of subjects: crystal, superfluid, neutron stars, Higgs boson, magnets, and many others. Yet there is a variety in the spectrum of gapless excitations even when the symmetry breaking patterns are the same. We… -
Hydrodynamics and anomalies
Dam Thanh Son - University of Chicago
Recently its has been found that relativistic hydrodynamics requires modifications in the presence of quantum anomalies. We will follow the theoretical developments that leads to this discovery and look at modern applications of hydrodynamics with anomalies.