Fermi-liquid theory of ultracold trapped Fermi gases: Implications for pseudogap physics and other strongly correlated phases

Journal Article · Thu Jul 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.013603· OSTI ID:21442952

Chien, Chih-Chun ^[1]; Levin, K ^[2]

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1. Theoretical Division, Los Alamos National Laboratory, MS B213, Los Alamos, New Mexico 87545 (United States)
2. James Franck Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637 (United States)

We show how Fermi-liquid theory can be applied to ultracold Fermi gases, thereby expanding their ''simulation'' capabilities to a class of problems of interest to multiple physics subdisciplines. We introduce procedures for measuring and calculating position-dependent Landau parameters. This lays the groundwork for addressing important controversial issues: (i) the suggestion that thermodynamically, the normal state of a unitary gas is indistinguishable from a Fermi liquid and (ii) that a fermionic system with strong repulsive contact interactions is associated with either ferromagnetism or localization; this relates as well to {sup 3}He and its p-wave superfluidity.

• OSTI ID: 21442952
• Journal Information: Physical Review. A, Vol. 82, Issue 1; Other Information: DOI: 10.1103/PhysRevA.82.013603; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
FERMI GAS
FERMIONS
FERROMAGNETISM
HELIUM 3
P WAVES
SIMULATION
SUPERFLUIDITY
TRAPPING
EVEN-ODD NUCLEI
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETISM
NUCLEI
PARTIAL WAVES
STABLE ISOTOPES