Observation and quantification of the pseudogap in unitary Fermi gases

X Li, S Wang, X Luo, YY Zhou, K **e, HC Shen, YZ Nie… - Nature, 2024 - nature.com
The microscopic origin of high-temperature superconductivity in cuprates remains unknown.
It is widely believed that substantial progress could be achieved by better understanding of …

Universal spin transport and quantum bounds for unitary fermions

T Enss, JH Thywissen - Annual Review of Condensed Matter …, 2019 - annualreviews.org
We review recent advances in experimental and theoretical understanding of spin transport
in strongly interacting Fermi gases. The central new phenomenon is the observation of a …

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 …

Angle-resolved photoemission spectroscopy of a Fermi–Hubbard system

PT Brown, E Guardado-Sanchez, BM Spar, EW Huang… - Nature Physics, 2020 - nature.com
Angle-resolved photoemission spectroscopy (ARPES) measures the single-particle
excitations of a many-body quantum system with energy and momentum resolution …

The pseudogap regime in the unitary Fermi gas

S Jensen, CN Gilbreth, Y Alhassid - The European Physical Journal …, 2019 - Springer
We discuss the pseudogap regime in the unitary Fermi gas (UFG), with a particular
emphasis on the auxiliary-field quantum Monte Carlo (AFMC) approach. We discuss …

Spectral function of Fermi polarons at finite temperature from a self-consistent many-body -matrix approach in real frequency

H Hu, XJ Liu - Physical Review A, 2024 - APS
We theoretically examine the finite-temperature spectral function of Fermi polarons in three
dimensions by using a self-consistent many-body T-matrix theory in real frequency. In …

Emergence of a Pseudogap in the BCS-BEC Crossover

A Richie-Halford, JE Drut, A Bulgac - Physical Review Letters, 2020 - APS
Strongly correlated Fermi systems with pairing interactions become superfluid below a
critical temperature T c. The extent to which such pairing correlations alter the behavior of …

Contact in the unitary Fermi gas across the superfluid phase transition

S Jensen, CN Gilbreth, Y Alhassid - Physical Review Letters, 2020 - APS
A quantity known as the contact is a fundamental thermodynamic property of quantum many-
body systems with short-range interactions. Determination of the temperature dependence …

High-temperature pairing in a strongly interacting two-dimensional Fermi gas

PA Murthy, M Neidig, R Klemt, L Bayha, I Boettcher… - Science, 2018 - science.org
The nature of the normal phase of strongly correlated fermionic systems is an outstanding
question in quantum many-body physics. We used spatially resolved radio-frequency …

Pseudo-conformal sound speed in the core of compact stars

M Rho - Symmetry, 2022 - mdpi.com
By implementing the putative “hadron-quark continuity” conjectured in QCD in terms of
skyrmion-half-skyrmion topological change in an effective field theory for dense matter, we …