625 citations · 2k across the 54 of their papers we have counts for
32 papers · 1 filter
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…
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…
Unitary -wave Fermi gas in one dimension
Hiroyuki Tajima, Shoichiro Tsutsui, Takahiro M. Doi +1
We elucidate universal many-body properties of a one-dimensional, two-component ultracold Fermi gas near the -wave Feshbach resonance. The low-energy scattering in this system c…
Complex Langevin study for polarons in an attractively interacting one-dimensional two-component Fermi gas
Takahiro M. Doi, Hiroyuki Tajima, Shoichiro Tsutsui
We investigate a polaronic excitation in a one-dimensional spin-1/2 Fermi gas with contact attractive interactions, using the complex Langevin method, which is a promising approach…
Optical spin conductivity in ultracold quantum gases
Yuta Sekino, Hiroyuki Tajima, Shun Uchino
We show that the optical spin conductivity being a small AC response of a bulk spin current and elusive in condensed matter systems can be measured in ultracold atoms. We demonstra…
Condensation of Cooper Triples
Sora Akagami, Hiroyuki Tajima, Kei Iida
The condensation of Cooper pairs, originating from the Fermi-surface instability due to a weakly attractive interaction between two fermions, opened a new frontier for exploring ma…