Crossover from Bardeen-Cooper-Schrieffer to Bose-Einstein condensation and the unitary Fermi gas

M Randeria, E Taylor - Annu. Rev. Condens. Matter Phys., 2014 - annualreviews.org
The crossover from weak-coupling Bardeen-Cooper-Schrieffer (BCS) pairing to a Bose-
Einstein condensate (BEC) of tightly bound pairs, as a function of the attractive interaction in …

Observation and quantification of the pseudogap in unitary Fermi gases

X Li, S Wang, X Luo, YY Zhou, K ** the tools for
understanding nontrivial yet unordered states of matter. One important idea to emerge in this …

Metastability and coherence of repulsive polarons in a strongly interacting Fermi mixture

C Kohstall, M Zaccanti, M Jag, A Trenkwalder… - Nature, 2012 - nature.com
Ultracold Fermi gases with tunable interactions provide a test bed for exploring the many-
body physics of strongly interacting quantum systems,,,. Over the past decade, experiments …

Boiling a unitary Fermi liquid

Z Yan, PB Patel, B Mukherjee, RJ Fletcher, J Struck… - Physical Review Letters, 2019 - APS
We study the thermal evolution of a highly spin-imbalanced, homogeneous Fermi gas with
unitarity limited interactions, from a Fermi liquid of polarons at low temperatures to a …

Observation of a pairing pseudogap in a two-dimensional Fermi gas

M Feld, B Fröhlich, E Vogt, M Koschorreck, M Köhl - Nature, 2011 - nature.com
Pairing of fermions is ubiquitous in nature, underlying many phenomena. Examples include
superconductivity, superfluidity of 3He, the anomalous rotation of neutron stars, and the …

Universal sound diffusion in a strongly interacting Fermi gas

PB Patel, Z Yan, B Mukherjee, RJ Fletcher, J Struck… - Science, 2020 - science.org
Transport of strongly interacting fermions is crucial for the properties of modern materials,
nuclear fission, the merging of neutron stars, and the expansion of the early Universe. Here …

Spectral response and contact of the unitary Fermi gas

B Mukherjee, PB Patel, Z Yan, RJ Fletcher, J Struck… - Physical review …, 2019 - APS
We measure radio frequency (rf) spectra of the homogeneous unitary Fermi gas at
temperatures ranging from the Boltzmann regime through quantum degeneracy and across …