265 citations · 3k across the 128 of their papers we have counts for
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cond-mat.stat-mech2008★ 57 cited
Dynamics of the Density Matrix in Contact with a Thermal Bath and the Quantum Master Equation
Takashi Mori, Seiji Miyashita
We study the structure of the time evolution of the density matrix in contact with a thermal bath in a standard projection operator sheme. The reduced density matrix of the system…
cond-mat.stat-mech2008★ 5 cited
Quantum response to time-dependent external fields
Seiji Miyashita, Shu Tanaka, Hans De Raedt +1
Recently, explicit real time dynamics has been studied in various systems. These quantum mechanical dynamics could provide new recipes in information processing. We study quantum d…
cond-mat.stat-mech2008★ 35 cited
Successive phase transitions at finite temperatures of the supersolid in the three-dimensional extended Bose-Hubbard model
Keisuke Yamamoto, Synge Todo, Seiji Miyashita
We study the finite temperature properties of the extended Bose-Hubbard model on a cubic lattice. This model exhibits the so-called supersolid state. To start with, we investigate…