From measurements to quantum friction

被引:10
作者
Barnett, Stephen M. [1 ]
Jeffers, John
Cresser, James D.
机构
[1] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland
[2] Macquarie Univ, Ctr Quantum Comp Technol, Dept Phys, Sydney, NSW 2109, Australia
关键词
D O I
10.1088/0953-8984/18/16/S02
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
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.
引用
收藏
页码:S401 / S410
页数:10
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