247 citations · 498 across the 34 of their papers we have counts for
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Phase Transitions and Noise Robustness of Quantum Graph States
Tatsuya Numajiri, Shion Yamashika, Tomonori Tanizawa +3
Graph states are entangled states that are essential for quantum information processing. As experimental advances enable the realization of large-scale graph states, efficient fide…
Violation of the Leggett-Garg inequality for dynamics of a Bose-Einstein condensate in a double-well potential
Tsubasa Sakamoto, Ryosuke Yoshii, Shunji Tsuchiya
The Leggett-Garg inequality (LGI) serves as a criterion to determine the adherence of macroscopic system dynamics to macrorealism, as introduced by Leggett and Garg. A violation of…
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…
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…
Entanglement propagation in thermalization of an isolated quantum system
Ryosuke Yoshii, Shion Yamashika, Shunji Tsuchiya
We study dynamics of entanglement in the thermalization process of an isolated quantum many-body system. We propose a simple setup for measuring the propagation speed of entangleme…