16 citations · 20 across the 10 of their papers we have counts for
11 papers
Correspondence between Asymptotic Quantum Many-Body Scars in Closed Systems and Diffusive Nambu-Goldstone Modes in Open Systems
Masaya Kunimi, Taiki Haga, Masaya Nakagawa
Hydrodynamic relaxation in open quantum many-body systems can be understood in terms of diffusive Nambu--Goldstone (NG) modes associated with strong-to-weak spontaneous symmetry br…
Discontinuous strong-to-weak symmetry breaking transition from thermal pure states
Taiki Haga, Masaya Kunimi, Masaya Nakagawa
We investigate the nonequilibrium dynamics of strong-to-weak spontaneous symmetry breaking in many-body quantum systems undergoing decoherence from thermal pure states. For generic…
Shapiro steps of superfluid Fermi gases in a ring trap across the BCS--BEC crossover
Hikaru Kuriki, Masaya Kunimi, Tetsuro Nikuni
We investigate the transport properties of a superfluid Fermi gas confined in a ring trap with a moving potential barrier across the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstei…
Magnetic-field control of interactions in alkaline-earth Rydberg atoms and applications to {\it XXZ} models
Masaya Kunimi, Takafumi Tomita
We study the magnetic-field dependence of the interactions between two alkaline-earth(-like) Rydberg atoms, Sr and Yb. Considering the pair of Rydberg states $|n…
Performance Comparison of QAOA Mixers for Ternary Portfolio Optimization
Shintaro Yamamura, Satoshi Watanabe, Masaya Kunimi +2
The Quantum Approximate Optimization Algorithm (QAOA) is a quantum algorithm proposed for Noisy Intermediate-Scale Quantum (NISQ) devices and is regarded as a promising approach to…
Construction of asymptotic quantum many-body scar states in the SU() Hubbard model
Daiki Hashimoto, Masaya Kunimi, Tetsuro Nikuni
We construct asymptotic quantum many-body scars (AQMBS) in one-dimensional SU() Hubbard chains () by embedding the scar subspace into an auxiliary Hilbert subspace $\ma…
Proposal for realizing Heisenberg-type quantum-spin models in Rydberg-atom quantum simulators
Masaya Kunimi, Takafumi Tomita
We investigate the magnetic-field dependence of the interaction between two Rydberg atoms, and . In this setting, the effective s…
Robustness of the avian compass function described by radical pair model against biomagnetic noise
Tokio Yoshida, Masaya Kunimi, Tetsuro Nikuni
The magnetic sensing mechanism proposed to exist in avian eyes functions as a compass that detects the geomagnetic inclination aiding their migration. This mechanism is modeled by…
Proposal for experimental realization of quantum spin chains with quasiperiodic interactions using Rydberg atoms
Takaharu Yoshida, Masaya Kunimi, Tetsuro Nikuni
Investigating localization properties of interacting disordered systems plays a crucial role in understanding thermalization and its absence in closed quantum systems. However, sim…
Proposal for realizing quantum-spin systems on a two-dimensional square lattice with Dzyaloshinskii-Moriya interaction by Floquet engineering using Rydberg atoms
Hiroki Kuji, Masaya Kunimi, Tetsuro Nikuni
We theoretically propose a method for implementing the Hamiltonian incorporating Heisenberg and Dzyaloshinskii-Moriya (DM) interactions within Rydberg atoms arranged in a two-dimen…
Strong Spin-Motion Coupling in the Ultrafast Dynamics of Rydberg Atoms
Vineet Bharti, Seiji Sugawa, Masaya Kunimi +7
Rydberg atoms in optical lattices and tweezers is now a well established platform for simulating quantum spin systems. However, the role of the atoms' spatial wavefunction has not…