Quantum Brownian motion with large friction |
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Authors: | Ankerhold Joachim Grabert Hermann Pechukas Philip |
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Institution: | Physikalisches Institut, Albert-Ludwigs-Universit?t, 79104 Freiburg, Germany. ankerhold@physik.uni-freiburg.de |
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Abstract: | Quantum Brownian motion in the strong friction limit is studied based on the exact path integral formulation of dissipative systems. In this limit the time-nonlocal reduced dynamics can be cast into an effective equation of motion, the quantum Smoluchowski equation. For strongly condensed phase environments it plays a similar role as master equations in the weak coupling range. Applications for chemical, mesoscopic, and soft matter systems are discussed and reveal the substantial role of quantum fluctuations. |
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