Completely positive quantum dissipation
نویسنده
چکیده
A completely positive master equation describing quantum dissipation for a Brownian particle is derived starting from microphysical collisions, exploiting a recently introduced approach to subdynamics of a macrosystem. The obtained equation can be cast into Lindblad form with a single generator for each Cartesian direction. Temperature dependent friction and diffusion coefficients for both position and momentum are expressed in terms of the collision cross section.
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ورودعنوان ژورنال:
- Physical review letters
دوره 84 7 شماره
صفحات -
تاریخ انتشار 2000