Torres, Juan Mauricio ; Seligman, Thomas H. (2017)
Protecting coherence by environmental decoherence: a solvable paradigmatic model.
In: New Journal of Physics, 19 (11)
doi: 10.1088/1367-2630/aa910c
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
We consider a particularly simple exactly solvable model for a qubit coupled to sequentially nested environments. The purpose is to exemplify the coherence conserving effect of a central system, that has been reported as a result of increasing the coupling between near and far environment. The paradigmatic example is the Jaynes–Cummings Hamiltonian, which we introduce into a Kossakowski–Lindblad master equation using alternatively the lowering operator of the oscillator or its number operator as Lindblad operators. The harmonic oscillator is regarded as the near environment of the qubit, while effects of a far environment are accounted for by the two options for the dissipative part of the master equation. The exact solution allows us to cover the entire range of coupling strength from the perturbative regime to strong coupling analytically. The coherence conserving effect of the coupling to the far environment is confirmed throughout.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Torres, Juan Mauricio ; Seligman, Thomas H. |
| Art des Eintrags: | Bibliographie |
| Titel: | Protecting coherence by environmental decoherence: a solvable paradigmatic model |
| Sprache: | Englisch |
| Publikationsjahr: | 10 November 2017 |
| Ort: | London |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | New Journal of Physics |
| Jahrgang/Volume einer Zeitschrift: | 19 |
| (Heft-)Nummer: | 11 |
| Kollation: | 8 Seiten |
| DOI: | 10.1088/1367-2630/aa910c |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | We consider a particularly simple exactly solvable model for a qubit coupled to sequentially nested environments. The purpose is to exemplify the coherence conserving effect of a central system, that has been reported as a result of increasing the coupling between near and far environment. The paradigmatic example is the Jaynes–Cummings Hamiltonian, which we introduce into a Kossakowski–Lindblad master equation using alternatively the lowering operator of the oscillator or its number operator as Lindblad operators. The harmonic oscillator is regarded as the near environment of the qubit, while effects of a far environment are accounted for by the two options for the dissipative part of the master equation. The exact solution allows us to cover the entire range of coupling strength from the perturbative regime to strong coupling analytically. The coherence conserving effect of the coupling to the far environment is confirmed throughout. |
| Freie Schlagworte: | decoherence, open quantum systems, cavity quantum electrodynamics |
| ID-Nummer: | Artikel-ID: 113016 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Angewandte Physik 05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenphysik |
| Hinterlegungsdatum: | 02 Mai 2024 12:35 |
| Letzte Änderung: | 02 Mai 2024 12:35 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Protecting coherence by environmental decoherence: a solvable paradigmatic model. (deposited 22 Apr 2024 09:19)
- Protecting coherence by environmental decoherence: a solvable paradigmatic model. (deposited 02 Mai 2024 12:35) [Gegenwärtig angezeigt]
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