Control of temperature and entropy by frequent quantum measurements |
| |
Authors: | G Gordon N Erez and G Kurizki |
| |
Institution: | (1) Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109 |
| |
Abstract: | We study deviations from thermal equilibrium between two-level systems (TLS) and a bath by frequent and brief quantum measurements
of the TLS energy-states. The resulting entropy and temperature of both the system and the bath are found to be completely
determined by the measurement rate, and unrelated to what is expected by standard thermodynamical rules that hold for Markovian
baths. These anomalies allow for very fast control heating, cooling and state-purification (entropy reduction) of quantum systems much sooner than their thermal equilibration
time. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|