We review the physics of pair-density wave (PDW) superconductors. We begin with a
macroscopic description that emphasizes order induced by PDW states, such as charge …

The physics of quantum degenerate atomic Fermi gases in uniform as well as in
harmonically trapped configurations is reviewed from a theoretical perspective. Emphasis is …

Nuclear matter and finite nuclei exhibit the property of superfluidity by forming Cooper pairs.
We review the microscopic theories and methods that are being employed to understand the …

We established superfluidity in a two-state mixture of ultracold fermionic atoms with
imbalanced state populations. This study relates to the long-standing debate about the …

We present a theoretical interpretation of a recent experiment presented by Zwierlein
[Nature (London) 442, 54 (2006)] on the density profile of Fermi gases with unbalanced spin …

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 present an overview of recent developments in species-imbalanced ('polarized')
Feshbach-resonant Fermi gases. We summarize the current status of thermodynamics of …

We study resonantly-paired s-wave superfluidity in a degenerate gas of two species
(hyperfine states labeled by↑,↓) of fermionic atoms when the numbers N↑ and N↓ of the …

The real-space densities of a polarized strongly interacting two-component Fermi gas of Li 6
atoms reveal two low-temperature regimes, both with a fully paired core. At the lowest …

We develop a low-energy model of an unidirectional Larkin-Ovchinnikov (LO) state.
Because the underlying rotational and translational symmetries are broken spontaneously …