activity
20122025
most citedAn improvement in complex Langevin dynamics from a view point of Lefschetz thimbles

32 citations · 166 across the 25 of their papers we have counts for

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Showing cond-mat.quant-gasShow all

5 papers · 1 filter

cond-mat.quant-gas2021★ 15 cited

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…

cond-mat.quant-gas2021★ 14 cited

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…

cond-mat.quant-gas2021★ 7 cited

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…

cond-mat.quant-gas2020★ 21 cited

Cooper Triples in Attractive Three-Component Fermions: Implication for Hadron-Quark Crossover

Hiroyuki Tajima, Shoichiro Tsutsui, Takahiro M. Doi +1

We investigate many-body properties of equally populated three-component fermions with attractive three-body contact interaction in one dimension. A diagrammatic approach suggests…

cond-mat.quant-gas2020★ 6 cited

Low-Dimensional Fluctuations and Pseudogap in Gaudin-Yang Fermi Gases

Hiroyuki Tajima, Shoichiro Tsutsui, Takahiro M. Doi

Pseudogap is a ubiquitous phenomenon in strongly correlated systems such as high- superconductors, ultracold atoms and nuclear physics. While pairing fluctuations induci…