e-Journal of Surface Science and Nanotechnology 1(12) 175-180 2003年12月 [査読有り]
Quantum mechanics of one-dimensional time-independent system whose energy level statistics obeys the Gaussian ensemble is numerically studied. Recently the nano-size quantum dots and anti-dots made by the highly sophisticated fabrication process o...
H Matsumoto   S Sakamoto   S Katoh   
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 388 463-464 2003年5月 [査読有り]
I-V characteristics of high T-c superconductors, such as Bi2Sr2CaCu2O8, are well described by use of the multi-Josephson junction model. I-V characteristics are investigated, including both capacitive and inductive effects. It is shown that both e...
We numerically investigate Bose-Einstein condensation (BEC) of finite number atoms in a mean field approximation. For the Bose gas interacting with a weak repulsive potential and trapped in an external parabolic potential, BEC occurs at finite tem...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 71(8) 1939-1946 2002年8月 [査読有り]
The phase transition of the one-dimensional Bose gas, interacting weakly with a repulsive potential and trapped in an external parabolic potential, is studied in a mean field approximation. The Bose-Einstein condensed (BEC) state is identified by ...