Quantum dissipative systems from theory of continuous measurements

We apply the restricted-path-integral (RPI) theory of non-minimally disturbing continuous measurements for correct description of frictional Brownian motion. The resulting master equation is automatically of the Lindblad form, so that the difficulties typical of other approaches do not exist. In the...

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Bibliographic Details
Published inPhysics letters. A Vol. 308; no. 4; pp. 243 - 248
Main Authors Mensky, Michael B., Stenholm, Stig
Format Journal Article
LanguageEnglish
Published Elsevier B.V 03.03.2003
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Summary:We apply the restricted-path-integral (RPI) theory of non-minimally disturbing continuous measurements for correct description of frictional Brownian motion. The resulting master equation is automatically of the Lindblad form, so that the difficulties typical of other approaches do not exist. In the special case of harmonic oscillator the known familiar master equation describing its frictionally driven Brownian motion is obtained. A thermal reservoir as a measuring environment is considered.
ISSN:0375-9601
1873-2429
DOI:10.1016/S0375-9601(03)00057-4