A phenomenological construction of quantum Langevin equations, based on the physical
criteria of (i) the canonical equal-time commutators,(ii) the Kubo formula,(iii) the virial …

For studies on thermalization of an isolated quantum many-body system, the fundamental
issue is to determine whether a given system thermalizes or not. However, most studies …

Fluctuation dissipation theorems (FDTs) connect the linear response of a physical system to
a perturbation to the steady-state correlation functions. Until now, most of these theorems …

We study the off-diagonal current fluctuation in a macroscopic quantum system measured in
an ideal manner that is as close as possible to the classical ideal measurement. We show …

Quantum Violation of the Fluctuation–Dissipation Theorem in Macroscopic Two-dimensional
Electronic Systems | JPSJ News and Comments [Login] [Register] Cart Japanese Physical …

不純物が存在する巨視的な二次元電子系のバルク領域における電流ゆらぎの性質を調べた.
一般に物理量のゆらぎはどのような測定器で測定したかに依存して大きく変化してしまうが …