Transportless equilibration in isolated many-body quantum systems

Reimann P (2019)
New Journal of Physics 21: 053014.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
OA 1.08 MB
Abstract / Bemerkung
A general analytical theory of temporal relaxation processes in isolated quantum systems with many degrees of freedom is elaborated, which unifies and substantially amends several previous approximations. Specifically, the Fourier transform of the initial energy distribution is found to play a key role, which is furthermore equivalent to the so-called survival probability in case of a pure initial state. The main prerequisite is the absence of any notable transport currents, caused for instance by some initially unbalanced local densities of particles, energy, and so on. In particular, such a transportless relaxation scenario naturally arises when both the system Hamiltonian and the initial non-equilibrium state do not exhibit any spatial inhomogeneities on macroscopic scales. A further requirement is that the relaxation must not be notably influenced by any approximate (but not exact) constant of motion or metastable state. The theoretical predictions are compared with various experimental and numerical results from the literature.
Erscheinungsjahr
2019
Zeitschriftentitel
New Journal of Physics
Band
21
Art.-Nr.
053014
eISSN
1367-2630
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of Bielefeld University.
Page URI
https://pub.uni-bielefeld.de/record/2935519

Zitieren

Reimann P. Transportless equilibration in isolated many-body quantum systems. New Journal of Physics. 2019;21: 053014.
Reimann, P. (2019). Transportless equilibration in isolated many-body quantum systems. New Journal of Physics, 21, 053014. doi:10.1088/1367-2630/ab1a63
Reimann, P. (2019). Transportless equilibration in isolated many-body quantum systems. New Journal of Physics 21:053014.
Reimann, P., 2019. Transportless equilibration in isolated many-body quantum systems. New Journal of Physics, 21: 053014.
P. Reimann, “Transportless equilibration in isolated many-body quantum systems”, New Journal of Physics, vol. 21, 2019, : 053014.
Reimann, P.: Transportless equilibration in isolated many-body quantum systems. New Journal of Physics. 21, : 053014 (2019).
Reimann, Peter. “Transportless equilibration in isolated many-body quantum systems”. New Journal of Physics 21 (2019): 053014.
Alle Dateien verfügbar unter der/den folgenden Lizenz(en):
Volltext(e)
Access Level
OA Open Access
Zuletzt Hochgeladen
2019-05-09T07:06:01Z
MD5 Prüfsumme
34b2b96ecdf29ab3b01d20ee8f257400