35 citations · 43 across the 7 of their papers we have counts for
7 papers
Error bounds on the universal Lindblad equation in the thermodynamic limit
Teruhiro Ikeuchi, Takashi Mori
It is a central problem in various fields of physics to elucidate the behavior of quantum many-body systems subjected to bulk dissipation. In this context, several microscopic deri…
Out-of-time-order correlator computation based on discrete truncated Wigner approximation
Tatsuhiko Shirai, Takashi Mori
We propose a method based on the discrete truncated Wigner approximation (DTWA) for computing out-of-time-order correlators. This method is applied to long-range interacting quantu…
Impact of Measurement Noise on Escaping Saddles in Variational Quantum Algorithms
Eriko Kaminishi, Takashi Mori, Michihiko Sugawara +1
Stochastic gradient descent (SGD) is a frequently used optimization technique in classical machine learning and Variational Quantum Eigensolver (VQE). For the implementation of VQE…
Strong Markov dissipation in driven-dissipative quantum systems
Takashi Mori
The Lindblad equation, which describes Markovian quantum dynamics under dissipation, is usually derived under the weak system-bath coupling assumption. Strong system-bath coupling…
Liouvillian-gap analysis of open quantum many-body systems in the weak dissipation limit
Takashi Mori
Recent experiments have reported that novel physics emerge in open quantum many-body sys- tems due to an interplay of interactions and dissipation, which stimulate theoretical stud…
Accelerated Decay due to Operator Spreading in Bulk-Dissipated Quantum Systems
Tatsuhiko Shirai, Takashi Mori
Markovian open many-body quantum systems display complicated relaxation dynamics. The spectral gap of the Liouvillian characterizes the asymptotic decay rate towards the stationary…
Thermalization in open many-body systems based on eigenstate thermalization hypothesis
Tatsuhiko Shirai, Takashi Mori
We investigate steady states of macroscopic quantum systems under dissipation not obeying the detailed balance condition. We argue that the Gibbs state at an effective temperature…