2 citations · 2 across the 3 of their papers we have counts for
6 papers
Rocking ratchet based on F1-ATPase in the absence of ATP
Kumiko Hayashi, Hisatsugu Yamasaki, Mitsunori Takano
Bartussek, Hanggi and Kissner studied a rocking ratchet system, in which a Brownian particle is subject to an asymmetric periodic potential together with an oscillating force, and…
Levitation of Bose-Einstein condensates induced by macroscopic non-adiabatic quantum tunneling
Katsuhiro Nakamura, Akihisa Kohi, Hisatsugu Yamasaki +1
We study the dynamics of two-component Bose-Einstein condensates trapped in different vertical positions in the presence of an oscillating magnetic field. It is shown here how tuni…
A model for conservative chaos constructed from multi-component Bose-Einstein condensates with a trap in 2 dimensions
Hisatsugu Yamasaki, Yuhei Natsume, Katsuhiro Nakamura
To show a mechanism leading to the breakdown of a particle picture for the multi-component Bose-Einstein condensates(BECs) with a harmonic trap in high dimensions, we investigate t…
Frustrated quantum-spin system on a triangle coupled with lattice vibrations - Correspondence to Longuet-Higgins et al.'s Jahn-Teller model -
Hisatsugu Yamasaki, Yuhei Natsume, Akira Terai +1
We investigate the quantum three spin model of spin on a triangle, in which spins are coupled with lattice-vibrational modes through the exc…
Chaos-induced breaking of the Franck-Condon approximation
Hisatsugu Yamasaki, Yuhei Natsume, Akira Terai +1
We investigate the vibrational structure of electronic spectra for the transition from the non-degenerate state to states in Jahn-Teller systems with the t…
Chaos and its quantization in dynamical Jahn-Teller systems
Hisatsugu Yamasaki, Yuhei Natsume, Akira Terai +1
We investigate the Jahn-Teller system for the purpose to reveal the nature of quantum chaos in crystals. This system simulates the interaction between the nuclear…