We present a quantum theory of friction in which interactions with the surrounding medium are described by generalized measurements of the particle's position and momentum. The theory predicts intrinsically quantum contributions to the particle's steady-state energy and to the associated diffusion in position. We discuss the physical significance of these and demonstrate their significance in ensuring a well behaved theory.
|Number of pages||10|
|Journal||Journal of Physics: Condensed Matter|
|Publication status||Published - 26 Apr 2006|
- master equation
- dynamical semigroups
- atomic systems