Abstract The Kibble–Zurek mechanism is a theoretical framework that describes the
formation and scaling of topological defects in symmetry-breaking phase transitions. It was …

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 have observed the spontaneous appearance of currents in a ring of ultracold fermionic
atoms (Li 6) with attractive interactions, following a quench to a BCS-like pair superfluid. We …

We present a theoretical review of the recent progress in non-equilibrium BCS (Bardeen-
Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover physics. As a paradigmatic …

Symmetry-breaking phase transitions are central to our understanding of states of matter.
When a continuous symmetry is spontaneously broken, new excitations appear that are tied …

We calculate the pair susceptibility of an attractive spin-polarized Fermi gas in the normal
phase, as a function of the pair momentum. Close to unitarity, we find a strong enhancement …

Half a century ago, T. Kibble proposed a scenario for topological defect formation from
symmetry breaking during the expansion of the early Universe. W. Zurek later crystallized …

Pairing lies at the heart of superfluidity in fermionic systems. Motivated by recent
experiments in mesoscopic Fermi gases, we study up to six fermionic atoms with equal …

We revisit the study of amplitude oscillations in a pair condensate of fermions after an
interaction quench, and generalize it to nonzero temperature. For small variations of the …

We show that a variety of nonequilibrium dynamics of interacting many-body systems are
universally characterized by an elegant relation, which we call the dynamic virial theorem …