Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions

Reimann P (2012)
Physica Scripta 86(5): 58512.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
In how far does a non-equilibrium initial ensemble evolve towards a stationary long time behavior for an isolated macroscopic quantum system? We demonstrate that deviations from a steady state indeed become unmeasurably small or exceedingly rare after initial transients have died out under the following conditions: the Hamiltonian does not exhibit exceedingly large degeneracies of energy eigenvalues and energy gaps. A large number of energy levels are significantly populated by the initial ensemble. The system is observed by a measurement device with a reasonably bound working range compared to the resolution limit. The entire experiment, ending in the quantum mechanical measurement process, can only be repeated a 'reasonable' number of times. It is argued that all these prerequisites for equilibration are fulfilled under many, if not all, experimentally realistic conditions.
Erscheinungsjahr
2012
Zeitschriftentitel
Physica Scripta
Band
86
Ausgabe
5
Art.-Nr.
58512
ISSN
0031-8949
eISSN
1402-4896
Page URI
https://pub.uni-bielefeld.de/record/2548542

Zitieren

Reimann P. Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions. Physica Scripta. 2012;86(5): 58512.
Reimann, P. (2012). Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions. Physica Scripta, 86(5), 58512. doi:10.1088/0031-8949/86/05/058512
Reimann, P. (2012). Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions. Physica Scripta 86:58512.
Reimann, P., 2012. Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions. Physica Scripta, 86(5): 58512.
P. Reimann, “Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions”, Physica Scripta, vol. 86, 2012, : 58512.
Reimann, P.: Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions. Physica Scripta. 86, : 58512 (2012).
Reimann, Peter. “Equilibration of isolated macroscopic quantum systems under experimentally realistic conditions”. Physica Scripta 86.5 (2012): 58512.

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