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Finite horizon model reduction and the appearance of dissipation in Hamiltonian systems

Barahona, M. and Doherty, A. C. and Sznaier, M. and Mabuchi, H. and Doyle, J. C. (2002) Finite horizon model reduction and the appearance of dissipation in Hamiltonian systems. In: IEEE Conference on Decision and Control, 41st, (CDC 2002), Las Vegas, NV, 10-13 December 2002. Vol.4. IEEE , Piscataway, NJ, pp. 4563-4568. ISBN 0-7803-7516-5.

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An apparent paradox in classical statistical physics is the mechanism by which conservative, time-reversible microscopic dynamics, can give rise to seemingly dissipative behavior. In this paper we use system theoretic tools to show that dissipation can arise as an artifact of incomplete observations over a finite horizon. In addition, this approach allows us to obtain finite-time, low order, approximations of systems with moderate size and to establish how the approach to the thermodynamic limit depends on the different physical parameters.

Item Type:Book Section
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Barahona, M.0000-0002-1089-5675
Doyle, J. C.0000-0002-1828-2486
Additional Information:© 2002 IEEE. Reprinted with permission.
Subject Keywords:approximation theory, infinite horizon, quantum statistical mechanics, reduced order systems, spin Hamiltonians
Record Number:CaltechAUTHORS:BARcdc02
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8684
Deposited By: Archive Administrator
Deposited On:05 Sep 2007
Last Modified:08 Nov 2021 20:52

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