120 citations
- The Graduate University for Advanced Studies, SOKENDAIJP8 papers
- High Energy Accelerator Research OrganizationJP7 papers
- Institute of Particle and Nuclear Studies7 papers
- RIKEN Center for Advanced Intelligence ProjectJP7 papers
- Guangdong University of TechnologyCN5 papers
- Lancaster UniversityGB5 papers
- Nagoya UniversityJP5 papers
- Hangzhou Dianzi UniversityCN4 papers
- Saitama UniversityJP4 papers
- Sun Yat-sen UniversityCN4 papers
- The University of TokyoJP3 papers
- Chuo UniversityJP2 papers
117 papers
A universal constraint for relaxation rates for quantum Markov generators: complete positivity and beyond
Dariusz Chruściński, Frederik vom Ende, Gen Kimura +1
Relaxation rates are key characteristics of quantum processes, as they determine how quickly a quantum system thermalizes, equilibrates, decoheres, and dissipates. While they play…
Characterization and generation of a SQL-beating catlike state through repetitive measurements
Mamiko Tatsuta, Yuichiro Matsuzaki, Hiroki Kuji +2
Sensitivity in metrology without entanglement is limited by the standard quantum limit (SQL). Recent studies have found that the Heisenberg-limited scaling, the ultimate sensitivit…
Non-perturbative particle production and differential geometry
Tomohiro Matsuda
This paper proposes a basic method for understanding stationary particle production on manifolds by means of the Stokes phenomenon. We studied the Stokes phenomena of the Schwinger…
The Exact WKB analysis and the Stokes phenomena of the Unruh effect and Hawking radiation
Seishi Enomoto, Tomohiro Matsuda
The physical observables of quantum theory can be described by perturbation theory, which is often given by diverging power series. This divergence is connected to the existence of…
The Exact WKB analysis for asymmetric scalar preheating
Seishi Enomoto, Tomohiro Matsuda
Using the exact WKB analysis of the higher-order differential equations, we analyze the asymmetry in dynamical particle production of a complex scalar field. The solution requires…
Physics-informed neural network method for modelling beam-wall interactions
Kazuhiro Fujita
A mesh-free approach for modelling beam-wall interactions in particle accelerators is proposed. The key idea of our method is to use a deep neural network as a surrogate for the so…