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From measurements to quantum friction

Barnett, S M and Jeffers, J and Cresser, J D (2006) From measurements to quantum friction. Journal of Physics: Condensed Matter, 18 (16). S401-S410. ISSN 0953-8984

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Abstract

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.