125 citations · 437 across the 28 of their papers we have counts for
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Entanglement induced by nonadiabatic chaos
Hiroshi Fujisaki
We investigate entanglement between electronic and nuclear degrees of freedom for a model nonadiabatic system. We find that entanglement (measured by the von Neumann entropy of the…
Quantum-"classical" correspondence in a nonadiabatic-transition system
Hiroshi Fujisaki
A nonadiabatic-transition system which exhibits ``quantum chaotic'' behavior [Phys. Rev. E {\bf 63}, 066221 (2001)] is investigated from quasi-classical aspects. Since such a syste…
Semiclassical approaches to controlling chemical reaction dynamics
Hiroshi Fujisaki, Yoshiaki Teranishi, Alexey Kondorskiy +1
We propose to use semiclassical methods to treat laser control problems of chemical reaction dynamics. Our basic strategy is as follows: Laser-driven chemical reactions are conside…
Dynamical aspects of quantum entanglement for coupled mapping systems
Hiroshi Fujisaki, Atushi Tanaka, Takayuki Miyadera
We investigate how the dynamical production of quantum entanglement for weakly coupled mapping systems is influenced by the chaotic dynamics of the corresponding classical system.…
Control of photodissociation branching using the complete reflection phenomenon: Application to HI molecule
Hiroshi Fujisaki, Yoshiaki Teranishi, Hiroki Nakamura
The laser control of photodissociation branching in a diatomic molecule is demonstrated to be effectively achieved with use of the complete reflection phenomenon. The phenomenon an…
Dynamical aspects of quantum entanglement for weakly coupled kicked tops
Hiroshi Fujisaki, Takayuki Miyadera, Atushi Tanaka
We investigate how the dynamical production of quantum entanglement for weakly coupled, composite quantum systems is influenced by the chaotic dynamics of the corresponding classic…
Saturation of the production of quantum entanglement between weakly coupled mapping systems in strongly chaotic region
Atushi Tanaka, Hiroshi Fujisaki, Takayuki Miyadera
The production of quantum entanglement between weakly coupled mapping systems, whose classical counterparts are both strongly chaotic, is investigated. In the weak coupling regime,…
Quantum Langevin equations for semiconductor light-emitting devices and the photon statistics at a low-injection level
Hiroshi Fujisaki, Akira Shimizu
From the microscopic quantum Langevin equations (QLEs) we derive the effective semiconductor QLEs and the associated noise correlations which are valid at a low-injection level and…