Schach, Patrik ; Giese, Enno (2024)
A unified theory of tunneling times promoted by Ramsey clocks.
In: Science Advances, 2024, 10 (16)
doi: 10.26083/tuprints-00027044
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
What time does a clock tell after quantum tunneling? Predictions and indirect measurements range from superluminal or instantaneous tunneling to finite durations, depending on the specific experiment and the precise definition of the elapsed time. Proposals and implementations use the atomic motion to define this delay, although the inherent quantum nature of atoms implies a delocalization and is in sharp contrast to classical trajectories. Here, we rely on an operational approach: We prepare atoms in a coherent superposition of internal states and study the time read-off via a Ramsey sequence after the tunneling process without the notion of classical trajectories or velocities. Our operational framework (i) unifies definitions of tunneling delay within one approach, (ii) connects the time to a frequency standard given by a conventional atomic clock that can be boosted by differential light shifts, and (iii) highlights that there exists no superluminal or instantaneous tunneling.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Schach, Patrik ; Giese, Enno |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | A unified theory of tunneling times promoted by Ramsey clocks |
| Sprache: | Englisch |
| Publikationsjahr: | 5 August 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2024 |
| Ort der Erstveröffentlichung: | Washington, DC [u.a.] |
| Verlag: | American Association for the Advancement of Science |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Science Advances |
| Jahrgang/Volume einer Zeitschrift: | 10 |
| (Heft-)Nummer: | 16 |
| Kollation: | 8 Seiten |
| DOI: | 10.26083/tuprints-00027044 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/27044 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | What time does a clock tell after quantum tunneling? Predictions and indirect measurements range from superluminal or instantaneous tunneling to finite durations, depending on the specific experiment and the precise definition of the elapsed time. Proposals and implementations use the atomic motion to define this delay, although the inherent quantum nature of atoms implies a delocalization and is in sharp contrast to classical trajectories. Here, we rely on an operational approach: We prepare atoms in a coherent superposition of internal states and study the time read-off via a Ramsey sequence after the tunneling process without the notion of classical trajectories or velocities. Our operational framework (i) unifies definitions of tunneling delay within one approach, (ii) connects the time to a frequency standard given by a conventional atomic clock that can be boosted by differential light shifts, and (iii) highlights that there exists no superluminal or instantaneous tunneling. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-270443 |
| 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 Quantenoptik |
| Hinterlegungsdatum: | 05 Aug 2024 09:41 |
| Letzte Änderung: | 09 Aug 2024 13:24 |
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| Suche nach Titel in: | TUfind oder in Google |
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- A unified theory of tunneling times promoted by Ramsey clocks. (deposited 05 Aug 2024 09:41) [Gegenwärtig angezeigt]
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