Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Yoshii, Ryosuke"'
The Leggett-Garg inequality (LGI) serves as a criterion to determine the adherence of macroscopic system dynamics to macrorealism, as postulated by Leggett and Garg. A violation of this inequality implies either the absence of a realistic description
Externí odkaz:
http://arxiv.org/abs/2407.05304
Publikováno v:
J. High Energ. Phys. 2024, 274 (2024)
We investigate spatially inhomogeneous solutions in a top-down holographic model: the D3/D7 model which provides a holographic description of the chiral phase transition for a finite external magnetic field, chemical potential, and temperature. We nu
Externí odkaz:
http://arxiv.org/abs/2402.04657
Graph states are entangled states useful for several quantum information processing tasks such as measurement-based quantum computation and quantum metrology. As the size of graph states realized in experiments increases, it becomes more essential to
Externí odkaz:
http://arxiv.org/abs/2304.10952
Publikováno v:
Phys. Rev. Research 5, 043102 (2023)
We investigate the time evolution of the second-order R\'enyi entropy (RE) for bosons in a one-dimensional optical lattice following a sudden quench of the hopping amplitude $J$. Specifically, we examine systems that are quenched into the strongly co
Externí odkaz:
http://arxiv.org/abs/2209.13340
Autor:
Kagamihara, Daichi, Kaneko, Ryui, Yamashika, Shion, Sugiyama, Kota, Yoshii, Ryosuke, Tsuchiya, Shunji, Danshita, Ippei
We investigate the time-dependent R\'{e}nyi entanglement entropy after a quantum quench starting from the Mott-insulating and charge-density-wave states in a one-dimensional free boson system. The second R\'{e}nyi entanglement entropy is found to be
Externí odkaz:
http://arxiv.org/abs/2207.08353
Autor:
Yoshii, Ryosuke, Hayakawa, Hisao
Publikováno v:
Phys. Rev. Research 5, 033014 (2023)
We theoretically study the entropy production and the work extracted from a system connected to two reservoirs by periodic modulations of the electrochemical potentials of the reservoirs and the parameter of a system Hamiltonian under isothermal cond
Externí odkaz:
http://arxiv.org/abs/2205.15193
Publikováno v:
Phys. Rev. A 106, 012405 (2022)
Graph states are entangled resource states for universal measurement-based quantum computation. Although matter qubits such as superconducting circuits and trapped ions are promising candidates to generate graph states, it is technologically hard to
Externí odkaz:
http://arxiv.org/abs/2202.10624
We propose a geometrical engine undergoing an adiabatic (Thouless) pumping process for a small system connected to external isothermal reservoirs with the control of electrochemical potentials of the reservoirs and one parameter in the system Hamilto
Externí odkaz:
http://arxiv.org/abs/2112.12370
Autor:
Matsumoto, Masataka, Yoshii, Ryosuke
Publikováno v:
Phys. Rev. D 104, 066007 (2021)
Holographic superconductor model represents various inhomogeneous solutions with homogeneous sources. In this paper, we study inhomogeneous structures in the presence of the homogeneous current and the chemical potential. We find single complex kink
Externí odkaz:
http://arxiv.org/abs/2012.10862
Publikováno v:
Phys. Rev. A 103, 043305 (2021)
We study collective modes and superfluidity of spin-1 bosons with antiferromagnetic interactions in an optical lattice based on the time-dependent Ginzburg-Landau (TDGL) equation derived from the spin-1 Bose-Hubbard model. Specifically, we examine th
Externí odkaz:
http://arxiv.org/abs/2012.02501