625 citations · 2k across the 54 of their papers we have counts for
54 papers
Biexciton-like quartet condensates in an electron-hole liquid
Yixin Guo, Hiroyuki Tajima, Haozhao Liang
We theoretically study the ground-state properties and the condensations of exciton-like Cooper pairs and biexciton-like Cooper quartets in an electron-hole system. Applying the va…
Cooper quartet correlations in infinite symmetric nuclear matter
Yixin Guo, Hiroyuki Tajima, Haozhao Liang
We investigate the quartet correlations in four-component fermionic systems at the thermodynamic limit within a variational many-body theory. The Bardeen-Cooper-Schrieffer (BCS)-ty…
Optical spin transport theory of spin-1/2 topological Fermi superfluids
Hiroyuki Tajima, Yuta Sekino, Shun Uchino
We theoretically investigate optical (frequency-dependent) bulk spin transport properties in a spin-1/2 topological Fermi superfluid. We specifically consider a one-dimensional sys…
Dissipation-relaxation dynamics of a spin-1/2 particle with a Rashba-type spin-orbit coupling in an ohmic heat bath
Tomohiro Hata, Eiji Nakano, Kei Iida +2
Spin-orbit coupling (SOC), which is inherent to a Dirac particle that moves under the influence of electromagnetic fields, manifests itself in a variety of physical systems includi…
Three-body crossover from a Cooper triple to bound trimer state in three-component Fermi gases near a triatomic resonance
Hiroyuki Tajima, Shoichiro Tsutsui, Takahiro M. Doi +1
We theoretically investigate ground-state properties of a three-component Fermi gas with pairwise contact interactions between different components near a triatomic resonance where…
Resonant pair-exchange scattering and BCS-BEC crossover in a system composed of dispersive and heavy incipient bands: a Feshbach analogy
Kazunari Ochi, Hiroyuki Tajima, Kei Iida +1
We theoretically show that a two-band system with very different masses harbors a resonant pair scattering that leads to novel pairing properties, as highlighted by the Bardeen-Coo…