975 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP429 papers
- Kyoto UniversityJP151 papers
- RIKENJP142 papers
- Tokyo Institute of TechnologyJP134 papers
- High Energy Accelerator Research OrganizationJP100 papers
- Tohoku UniversityJP100 papers
- Nagoya UniversityJP97 papers
- The University of OsakaJP96 papers
- Tokyo University of ScienceJP90 papers
- Japan Science and Technology AgencyJP68 papers
- UNSW SydneyAU63 papers
- Centre National de la Recherche ScientifiqueFR62 papers
114 papers · 1 filter
Excitation spectrum of vortex-lattice modes in a rotating condensate with a density-dependent gauge potential
Rony Boral, Swarup K. Sarkar, Matthew Edmonds +2
We investigate the collective excitation spectrum of a quasi-2D Bose-Einstein condensate trapped in a harmonic confinement with nonlinear rotation induced by a density-dependent ga…
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…
Non-Hermitian -wave superfluid and effects of the inelastic three-body loss in a one-dimensional spin-polarized Fermi gas
Hiroyuki Tajima, Yuta Sekino, Daisuke Inotani +3
We theoretically investigate non-Hermitian -wave Fermi superfluidity in one-dimensional spin-polarized Fermi gases which is relevant to recent ultracold atomic experiments. Cons…
Programmable order by disorder effect and underlying phases through dipolar quantum simulators
Huan-Kuang Wu, Takafumi Suzuki, Naoki Kawashima +1
In this work, we study two different quantum simulators composed of molecules with dipole-dipole interaction through various theoretical and numerical tools. Our first result provi…
Stable non-equilibrium Fulde-Ferrell-Larkin-Ovchinnikov state in a spin-imbalanced driven-dissipative Fermi gas loaded on a three-dimensional cubic optical lattice
Taira Kawamura, Daichi Kagamihara, Yoji Ohashi
We theoretically investigate a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) type superfluid phase transition in a driven-dissipative two-component Fermi gas. The system is assumed to be…
Thermodynamic geometry of ideal quantum gases: a general framework and a geometric picture of BEC-enhanced heat engines
Joshua Eglinton, Tuomas Pyharanta, Keiji Saito +1
Thermodynamic geometry provides a physically transparent framework to describe thermodynamic processes in meso- and micro-scale systems that are driven by slow variations of extern…
Non-Hermitian topological Fermi superfluid near the -wave unitary limit
Hiroyuki Tajima, Yuta Sekino, Daisuke Inotani +3
We theoretically discuss the non-Hermitian superfluid phase transition in one-dimensional two-component Fermi gases near the -wave Feshbach resonance accompanied by the two-body…
Dark quantum droplets and solitary waves in beyond-mean-field Bose-Einstein condensate mixtures
Matthew Edmonds
Quantum liquid-like states of matter have been realized in an ongoing series of experiments with ultracold Bose gases. Using a combination of analytical and numerical methods we id…
Feasibility of a Fulde-Ferrell-Larkin-Ovchinnikov superfluid Fermi atomic gas
Taira Kawamura, Yoji Ohashi
We theoretically explore a promising route to achieve the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in a spin-imbalanced ultracold Fermi gas. In the current stage of cold atom…
Isothermal compressibility and effects of multi-body molecular interactions in a strongly interacting ultracold Fermi gas
Daichi Kagamihara, Ryohei Sato, Koki Manabe +2
We theoretically investigate the isothermal compressibility in the normal state of an ultracold Fermi gas. Including pairing fluctuations, as well as preformed-pair formati…
Proposed Fermi-surface reservoir-engineering and application to realizing unconventional Fermi superfluids in a driven-dissipative non-equilibrium Fermi gas
Taira Kawamura, Ryo Hanai, Yoji Ohashi
We develop a theory to describe the dynamics of a driven-dissipative many-body Fermi system, to pursue our proposal to realize exotic quantum states based on reservoir engineering.…
Vortex lattices in binary Bose-Einstein condensates: Collective modes, quantum fluctuations, and intercomponent entanglement
Takumi Yoshino, Shunsuke Furukawa, Masahito Ueda
We study binary Bose-Einstein condensates subject to synthetic magnetic fields in mutually parallel or antiparallel directions. Within the mean-field theory, the two types of field…
Few-to-many vortex states of density-angular-momentum coupled Bose-Einstein condensates
Matthew Edmonds
Motivated by recent experiments, we theoretically study a gas of atomic bosons confined in an elliptical harmonic trap; forming a quasi-two-dimensional atomic Bose-Einstein condens…
Thermodynamic stability, compressibility matrix, and effects of mediated interactions in a strongly-interacting Bose-Fermi mixture
Koki Manabe, Yoji Ohashi
We theoretically investigate the thermodynamic stability of a normal-state Bose-Fermi mixture, with a tunable Bose-Fermi pairing interaction associated with a heter…
Superfluid properties of an ultracold Fermi gas with an orbital Feshbach resonance in the BCS-BEC crossover region
Taro Kamihori, Daichi Kagamihara, Yoji Ohashi
We theoretically investigate superfluid properties of a two-band gas of Yb Fermi atoms with an orbital Feshbach resonance (OFR). To describe the BCS-BEC crossover region, w…
Synthetic superfluid chemistry with vortex-trapped quantum impurities
Matthew Edmonds, Minoru Eto, Muneto Nitta
We explore the effect of using two-dimensional matter-wave vortices to confine an ensemble of bosonic quantum impurities. This is modelled theoretically using a mass-imbalanced hom…
Intercomponent entanglement entropy and spectrum in binary Bose-Einstein condensates
Takumi Yoshino, Shunsuke Furukawa, Masahito Ueda
We study the entanglement entropy and spectrum between components in binary Bose-Einstein condensates in spatial dimensions. We employ effective field theory to show that the e…
Competition and interplay between topology and quasi-periodic disorder in Thouless pumping of ultracold atoms
Shuta Nakajima, Nobuyuki Takei, Keita Sakuma +3
Robustness against perturbations lies at the heart of topological phenomena. If, however, a perturbation such as disorder becomes dominant, it may cause a topological phase transit…
Fractional and Integer Vortex Dynamics in Strongly Coupled Two-component Bose-Einstein Condensates from AdS/CFT Correspondence
Wei-Can Yang, Chuan-Yin Xia, Muneto Nitta +1
In order to study the rotating strongly coupled Bose-Einstein condensations(BEC), a holographic model defined in an AdS black hole that duals to a coupled two-component condensatio…
Radial Fulde-Ferrell-Larkin-Ovchinnikov state in a population-imbalanced Fermi gas
Daisuke Inotani, Shigehiro Yasui, Takeshi Mizushima +1
The possibility of a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in a population imbalanced Fermi gas with a vortex is proposed. Employing the Bogoliubov-de-Gennes formalism we s…
Vortex patterns of atomic Bose-Einstein condensates in a density-dependent gauge potential
Matthew Edmonds, Muneto Nitta
We theoretically examine the vortex states of a gas of trapped quasi-two-dimensional ultracold bosons subject to a density-dependent gauge potential, realizing an effective nonline…
Quantum droplets of quasi-one-dimensional dipolar Bose-Einstein condensates
Matthew Edmonds, Thomas Bland, Nick G. Parker
Ultracold dipolar droplets have been realized in a series of ground-breaking experiments, where the stability of the droplet state is attributed to beyond-mean-field effects in the…
Topologically quantized current in quasiperiodic Thouless pumps
Pasquale Marra, Muneto Nitta
Thouless pumps are topologically nontrivial states of matter with quantized charge transport, which can be realized in atomic gases loaded into an optical lattice. This topological…