Fermion interactions and universal behavior in strongly interacting theories

J Braun - Journal of Physics G: Nuclear and Particle Physics, 2012 - iopscience.iop.org
The theory of the strong interaction, quantum chromodynamics (QCD), describes the
generation of hadronic masses and the state of hadronic matter during the early stages of …

Imbalanced Fermi gases at unitarity

KB Gubbels, HTC Stoof - Physics Reports, 2013 - Elsevier
We consider imbalanced Fermi gases with strong attractive interactions, for which Cooper-
pair formation plays an important role. The two-component mixtures consist either of …

Universal phase diagram of a strongly interacting Fermi gas with unbalanced spin populations

F Chevy - Physical Review A—Atomic, Molecular, and Optical …, 2006 - APS
We present a theoretical interpretation of a recent experiment presented by Zwierlein
[Nature (London) 442, 54 (2006)] on the density profile of Fermi gases with unbalanced spin …

Observation of phase separation in a strongly interacting imbalanced Fermi gas

YI Shin, MW Zwierlein, CH Schunck, A Schirotzek… - Physical Review Letters, 2006 - APS
We have observed phase separation between the superfluid and the normal component in a
strongly interacting Fermi gas with imbalanced spin populations. The in situ distribution of …

Direct observation of the superfluid phase transition in ultracold Fermi gases

MW Zwierlein, CH Schunck, A Schirotzek, W Ketterle - nature, 2006 - nature.com
Phase transitions are dramatic phenomena: water freezes into ice, atomic spins
spontaneously align in a magnet, and liquid helium becomes superfluid. Sometimes, such a …

Normal state of a polarized Fermi gas at unitarity

C Lobo, A Recati, S Giorgini, S Stringari - Physical Review Letters, 2006 - APS
We study the Fermi gas at unitarity and at T= 0 by assuming that, at high polarizations, it is a
normal Fermi liquid composed of weakly interacting quasiparticles associated with the …

Imbalanced feshbach-resonant fermi gases

L Radzihovsky, DE Sheehy - Reports on Progress in Physics, 2010 - iopscience.iop.org
We present an overview of recent developments in species-imbalanced ('polarized')
Feshbach-resonant Fermi gases. We summarize the current status of thermodynamics of …

BEC–BCS crossover, phase transitions and phase separation in polarized resonantly-paired superfluids

DE Sheehy, L Radzihovsky - Annals of Physics, 2007 - Elsevier
We study resonantly-paired s-wave superfluidity in a degenerate gas of two species
(hyperfine states labeled by↑,↓) of fermionic atoms when the numbers N↑ and N↓ of the …

Deformation of a trapped Fermi gas with unequal spin populations

GB Partridge, W Li, YA Liao, RG Hulet, M Haque… - Physical review …, 2006 - APS
The real-space densities of a polarized strongly interacting two-component Fermi gas of Li 6
atoms reveal two low-temperature regimes, both with a fully paired core. At the lowest …

Finite-temperature phase diagram of a polarized Fermi condensate

MM Parish, FM Marchetti, A Lamacraft, BD Simons - Nature Physics, 2007 - nature.com
The two-component Fermi gas is the simplest fermion system exhibiting superfluidity, and as
such is relevant to topics ranging from superconductivity to quantum chromodynamics …