6 papers
Finite-momentum superconductivity with singlet-triplet mixing in an altermagnetic metal: A pairing instability analysis
Hui Hu, Zhao Liu, Jia Wang +2
We analyze the pairing instability of an altermagnetic metal on a square lattice driven by an attractive nearest-neighbor interaction. This interaction enables multiple pairing cha…
Emergence of Charge-Imbalanced BCS State and Suppression of Nonequilibrium FFLO State in Asymmetric NSN Junctions
Taira Kawamura, Yoji Ohashi
We theoretically study nonequilibrium superconductivity in voltage-biased normal metal-superconductor-normal metal (NSN) junctions, focusing on effects of lead-coupling asymmetry a…
Engineering nonequilibrium superconducting phases in a voltage-driven superconductor under an external magnetic field
Taira Kawamura, Yoji Ohashi
We theoretically investigate nonequilibrium properties of a normal metal-superconductor-normal metal (NSN) junction under an external magnetic field. When a bias voltage is applied…
Nuclear Spin-Lattice Relaxation Rate in Odd-Frequency Superconductivity
Shumpei Iwasaki, Yoji Ohashi
We theoretically investigate the temperature dependence of nuclear spin-lattice relaxation rate in bulk odd-frequency superconductivity. For a model odd-frequency pairin…
Nonequilibrium BCS-BEC crossover and unconventional FFLO superfluid in a strongly interacting driven-dissipative Fermi gas
Taira Kawamura, Yoji Ohashi
We present a theoretical review of the recent progress in nonequilibrium BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover physics. As a paradigmatic examp…
Pairing properties of an odd-frequency superfluid Fermi gas
Shumpei Iwasaki, Taira Kawamura, Koki Manabe +1
We theoretically investigate strong-coupling properties of an odd-frequency Fermi superfluid. This pairing state has the unique property that Cooper pairs are formed between fermio…