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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/4123

Title: Dissipation: The phase-space perspective
Authors: KAWAI, R.
Parrondo, J. M. R.
VAN DEN BROECK, Christian
Issue Date: 2007
Publisher: AMERICAN PHYSICAL SOC
Citation: PHYSICAL REVIEW LETTERS, 98(8)
Abstract: We show, through a refinement of the work theorem, that the average dissipation, upon perturbing a Hamiltonian system arbitrarily far out of equilibrium in a transition between two canonical equilibrium states, is exactly given by < W-diss >=< W >-Delta F=kTD(rho parallel to rho)=kT < ln(rho/rho)>, where rho and rho are the phase-space density of the system measured at the same intermediate but otherwise arbitrary point in time, for the forward and backward process. D(rho parallel to rho) is the relative entropy of rho versus rho. This result also implies general inequalities, which are significantly more accurate than the second law and include, as a special case, the celebrated Landauer principle on the dissipation involved in irreversible computations.
Notes: Univ Alabama, Dept Phys, Birmingham, AL 35294 USA. Univ Complutense Madrid, Dept Fis Atom Mol & Nucl, E-28040 Madrid, Spain. Univ Complutense Madrid, GISC, E-28040 Madrid, Spain. Univ Hasselt, B-3590 Diepenbeek, Belgium.Kawai, R, Univ Alabama, Dept Phys, Birmingham, AL 35294 USA.
URI: http://hdl.handle.net/1942/4123
DOI: 10.1103/PhysRevLett.98.080602
ISI #: 000244420700011
ISSN: 0031-9007
Category: A1
Type: Journal Contribution
Validation: ecoom, 2008
Appears in Collections: Research publications

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