Localization and anomalous diffusion of a damped quantum particle
- The time evolution of an initially localized state of a quantum particle coupled to a dissipative environment with spectral density I(ω)∝ωα for low frequencies is discussed. At finite temperatures, the width of the state can grow subdiffusively or superdiffusively, depending on α. For α>2 damping becomes ineffective for long times and the state spreads kinematically. At zero temperature the spreading is slower and for α<1 an initially localized state remains localized for all times.
| Author: | Hermann Grabert, Peter Schramm, Gert-Ludwig IngoldORCiDGND |
|---|---|
| URN: | urn:nbn:de:bvb:384-opus4-406375 |
| Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/40637 |
| ISSN: | 0031-9007OPAC |
| Parent Title (English): | Physical Review Letters |
| Publisher: | American Physical Society (APS) |
| Type: | Article |
| Language: | English |
| Year of first Publication: | 1987 |
| Publishing Institution: | Universität Augsburg |
| Release Date: | 2018/09/11 |
| Volume: | 58 |
| Issue: | 13 |
| First Page: | 1285 |
| Last Page: | 1288 |
| DOI: | https://doi.org/10.1103/physrevlett.58.1285 |
| Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Theoretische Physik I | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
