Heat transport can serve as a fingerprint identifying different states of matter. In a normal
liquid, a hotspot diffuses, whereas in a superfluid, heat propagates as a wave called “second …

We briefly review the research on second sound in ultracold atomic physics, with emphasis
on strongly interacting unitary Fermi gases with infinitely large s-wave scattering length …

Physics is living an era of unprecedented cross-fertilization among the different areas of
science. In this perspective review, we discuss the manifold impact that state-of-the-art cold …

We develop the moment method for Bose-Einstein condensates at finite temperatures that
enable us to study collective sound modes from the hydrodynamic to the collisionless …

The Boltzmann equation is a powerful theoretical tool for modeling the collective dynamics
of quantum many-body systems subject to external perturbations. Analysis of the equation …

We compare recent experimental results [Science 375, 528 (2022) 0036-8075
10.1126/science. abi4480] of the superfluid unitary Fermi gas near the critical temperature …

Two-component systems consisting of mutually interacting particles can demonstrate both
intracomponent transport effects and intercomponent entrainment (or drag) effects. In the …

We investigate the superfluidity of a three-dimensional weakly interacting Bose gas with a
one-dimensional Raman-type spin-orbit coupling at both zero and finite temperatures. Using …

We study the propagation of the two sound modes in two-dimensional Bose gases across
the Berezinksii–Kosterlitz–Thouless transition using classical-field dynamics, which is …

Physics is living an era of unprecedented cross-fertilization among the different areas of
science. In this perspective review, we discuss the manifold impact that ultracold-atom …