This review focuses on recent developments in synthetic spin–orbit (SO) coupling in
ultracold atomic gases. Two types of SO coupling are discussed. One is Raman process …

We review the concepts and the present state of theoretical studies of spin-imbalanced
superfluidity, in particular the elusive Fulde–Ferrell–Larkin–Ovchinnikov (FFLO) state, in the …

We demonstrate that a Weyl point, widely examined in 3D Weyl semimetals and superfluids,
can develop a pair of nondegenerate gapless spheres. Such a bouquet of two spheres is …

Pairing in an attractively interacting two-component Fermi gas in the absence of time-
reversal symmetry or inversion symmetry may give rise to exotic superfluid states. Notable …

Majorana fermions (MFs), quantum particles that are their own antiparticles, are not only of
fundamental importance in elementary particle physics and dark matter, but also building …

Spin-orbit coupling (SOC) plays a crucial role in many branches of physics. In this context,
the recent experimental realization of the coupling between spin and linear momentum of …

Higher-order topological superconductors hosting Majorana-Kramers pairs (MKPs) as
corner modes have recently been proposed in a two-dimensional quantum spin Hall …

We show that a single dark soliton can exist in a spin-orbit-coupled Fermi gas with a high
spin imbalance, where spin-orbit coupling favors uniform superfluids over nonuniform Fulde …

The experimental realization of emergent spin-orbit coupling through laser-induced Raman
transitions in ultracold atoms paves the way for exploring novel superfluid physics and …

Weyl fermions, first proposed for describing massless chiral Dirac fermions in particle
physics, have not been observed yet in experiments. Recently, much effort has been …