From measurements to quantum friction

S M Barnett, J Jeffers, J D Cresser

Research output: Contribution to journalArticle

9 Citations (Scopus)

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.

LanguageEnglish
PagesS401-S410
Number of pages10
JournalJournal of Physics: Condensed Matter
Volume18
Issue number16
DOIs
Publication statusPublished - 26 Apr 2006

Fingerprint

Quantum theory
Electron energy levels
Momentum
friction
Friction
quantum theory
momentum
interactions
energy

Keywords

  • brownian-motion
  • master equation
  • dynamical semigroups
  • atomic systems
  • dissipation

Cite this

Barnett, S M ; Jeffers, J ; Cresser, J D . / From measurements to quantum friction. In: Journal of Physics: Condensed Matter. 2006 ; Vol. 18, No. 16. pp. S401-S410.
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From measurements to quantum friction. / Barnett, S M ; Jeffers, J ; Cresser, J D .

In: Journal of Physics: Condensed Matter, Vol. 18, No. 16, 26.04.2006, p. S401-S410.

Research output: Contribution to journalArticle

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T1 - From measurements to quantum friction

AU - Barnett, S M

AU - Jeffers, J

AU - Cresser, J D

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N2 - 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.

AB - 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.

KW - brownian-motion

KW - master equation

KW - dynamical semigroups

KW - atomic systems

KW - dissipation

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DO - 10.1088/0953-8984/18/16/S02

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