Torres, Juan Mauricio ; Seligman, Thomas H. (2024)
Protecting coherence by environmental decoherence: a solvable paradigmatic model.
In: New Journal of Physics, 2017, 19 (11)
doi: 10.1088/1367-2630/aa910c
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
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: | 2024 |
| Autor(en): | Torres, Juan Mauricio ; Seligman, Thomas H. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Protecting coherence by environmental decoherence: a solvable paradigmatic model |
| Sprache: | Englisch |
| Publikationsjahr: | 22 April 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 10 November 2017 |
| Ort der Erstveröffentlichung: | 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 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20593 |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| 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 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-205931 |
| 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: | 22 Apr 2024 09:19 |
| Letzte Änderung: | 23 Apr 2024 10:08 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
- Protecting coherence by environmental decoherence: a solvable paradigmatic model. (deposited 22 Apr 2024 09:19) [Gegenwärtig angezeigt]
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum