141 citations · 879 across the 49 of their papers we have counts for
49 papers
Simplest fidelity-estimation method for graph states with depolarizing noise
Tomonori Tanizawa, Yuki Takeuchi, Shion Yamashika +2
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…
Evolution of entanglement entropy in strongly correlated bosons in an optical lattice
Shion Yamashika, Daichi Kagamihara, Ryosuke Yoshii +1
We investigate the time evolution of the second-order Rényi entropy (RE) for bosons in a one-dimensional optical lattice following a sudden quench of the hopping amplitude . Spe…
Rényi entanglement entropy after a quantum quench starting from insulating states in a free boson system
Daichi Kagamihara, Ryui Kaneko, Shion Yamashika +4
We investigate the time-dependent Rényi entanglement entropy after a quantum quench starting from the Mott-insulating and charge-density-wave states in a one-dimensional free boson…
Passive verification protocol for thermal graph states
Kazuki Akimoto, Shunji Tsuchiya, Ryosuke Yoshii +1
Graph states are entangled resource states for universal measurement-based quantum computation. Although matter qubits such as superconducting circuits and trapped ions are promisi…
Quasi-point versus point nodes in , the case of a flat tight binding sheet
P. Contreras, Dianela Osorio, Shunji Tsuchiya
We perform a numerical study of the unitary regime as a function of disorder concentration in the imaginary part of the elastic scattering cross-section for the compound $Sr_2RuO_4…
Emergence of multiple Higgs modes due to spontaneous breakdown of a symmetry in a superconductor
Shunji Tsuchiya
We study the Higgs mode in a Bardeen-Cooper-Schrieffer (BCS) superconductor. Motivated by the observation that U(1) symmetry of the BCS Hamiltonian is not essential for the Higgs m…