Zobrazeno 1 - 10
of 1 477
pro vyhledávání: '"MATSUMURA, Akira"'
Autor:
Kashiwagi, Kaito, Matsumura, Akira
The open dynamics of quantum particles in relativistic scattering is investigated. In particular, we consider the scattering process of quantum particles coupled to an environment initially in a vacuum state. Tracing out the environment and using the
Externí odkaz:
http://arxiv.org/abs/2412.08154
Autor:
Carney, Daniel, Matsumura, Akira
We analyze the framework recently proposed by Oppenheim et al. to model relativistic quantum fields coupled to relativistic, classical, stochastic fields (in particular, as a model of quantum matter coupled to ``classical gravity''). Perhaps surprisi
Externí odkaz:
http://arxiv.org/abs/2412.04839
In this study, we investigate the decoherence of a spatially superposed electrically neutral spin-$\frac12$ particle in the presence of a relativistic quantum electromagnetic field in Minkowski spacetime. We demonstrate that decoherence due to the sp
Externí odkaz:
http://arxiv.org/abs/2407.14581
We report the feasibility of detecting the gravity-induced entanglement (GIE) with optomechanical systems, which is the first investigation that clarifies the feasible experimental parameters to achieve a signal-to-noise ratio of S/N=1. Our proposal
Externí odkaz:
http://arxiv.org/abs/2406.04361
We investigate violations of Leggett-Garg inequalities (LGIs) for a harmonic oscillator and a (1+1)-dimensional chiral scalar field with coherent-state projectors, which is equivalent to a heterodyne-type measurement scheme. For the harmonic oscillat
Externí odkaz:
http://arxiv.org/abs/2401.10692
Understanding the phenomenon of quantum superposition of gravitational fields induced by massive quantum particles is an important starting point for quantum gravity. The purpose of this study is to deepen our understanding of the phenomenon of quant
Externí odkaz:
http://arxiv.org/abs/2401.03867
Autor:
Kashiwagi, Kaito, Matsumura, Akira
We investigate what kind of Markovian quantum master equation (QME) in the Gorini-Kossakowski-Sudarshan-Lindblad (GKSL) form is realized under Poincar\'{e} symmetry. The solution of the Markovian QME is given by a quantum dynamical semigroup, for whi
Externí odkaz:
http://arxiv.org/abs/2312.04069
We evaluate the gravity-induced negativity volume of the generalized Wigner function in a hybrid system consisting of a particle in a two-localized superposition state and an oscillator. The generalized Wigner function can capture the nonclassicality
Externí odkaz:
http://arxiv.org/abs/2311.10980
We investigate the quantum signature of gravity in optomechanical systems under quantum control. We analyze the gravity-induced entanglement and squeezing in mechanical mirrors in a steady state. The behaviors and the conditions for generating the gr
Externí odkaz:
http://arxiv.org/abs/2311.00563
Investigating the quantum nature of gravity is an important issue in modern physics. Recently, studies pertaining to the quantum superposition of gravitational potential have garnered significant interest. Inspired by Mari \textit{et al.} [Sci. Rep.
Externí odkaz:
http://arxiv.org/abs/2308.03093