Strongly Correlated Quantum Fluids: Ultracold Quantum Gases, Quantum Chromodynamic Plasmas, and Holographic Duality
Allan Adams, Lincoln D. Carr, Thomas Schaefer, Peter Steinberg, and, John E. Thomas
TL;DR
This paper reviews the connections between strongly correlated quantum fluids across vastly different systems, highlighting their shared hydrodynamic properties and the role of holographic duality in understanding their behavior.
Contribution
It provides an accessible overview of recent research linking ultracold gases, quark-gluon plasmas, and holographic duality, emphasizing their common hydrodynamic features.
Findings
Similar low shear viscosity to entropy density ratios in diverse systems
Holographic duality as a unifying framework for quantum fluids
Recent experimental and theoretical advances in strongly correlated fluids
Abstract
Strongly correlated quantum fluids are phases of matter that are intrinsically quantum mechanical, and that do not have a simple description in terms of weakly interacting quasi-particles. Two systems that have recently attracted a great deal of interest are the quark-gluon plasma, a plasma of strongly interacting quarks and gluons produced in relativistic heavy ion collisions, and ultracold atomic Fermi gases, very dilute clouds of atomic gases confined in optical or magnetic traps. These systems differ by more than 20 orders of magnitude in temperature, but they were shown to exhibit very similar hydrodynamic flow. In particular, both fluids exhibit a robustly low shear viscosity to entropy density ratio which is characteristic of quantum fluids described by holographic duality, a mapping from strongly correlated quantum field theories to weakly curved higher dimensional classical…
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