Di Pumpo, Fabio ; Friedrich, Alexander ; Ufrecht, Christian ; Giese, Enno
Hrsg.: © 2023 American Physical Society (2023)
Universality-of-clock-rates test using atom interferometry with
T³ scaling.
In: Physical Review D, 107 (6)
doi: 10.1103/PhysRevD.107.064007
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Metric descriptions of gravitation, among them general relativity as today’s established theory, are founded on assumptions summarized by the Einstein equivalence principle (EEP). Its violation would hint at unknown physics and could be a leverage for the development of quantum gravity. Atomic clocks are excellent systems to probe aspects of EEP connected to (proper) time and have evolved into a working horse for tests of local position invariance (LPI). Even though the operational definition of time requires localized and idealized clocks, quantum systems like atoms allow for spatial superpositions that are inherently delocalized. While quantum experiments have tested other aspects of EEP, no competitive test of LPI has been performed or proposed allowing for an intrinsic delocalization. We extend the concepts for tests of the universality of clock rates (one facet of LPI) to atom interferometry generating delocalized quantum clocks. The proposed test depends on proper time with a favorable scaling and is, in contrast to fountain clocks, robust against initial conditions and recoil effects. It enables optical frequencies so that the projected sensitivity exceeds the one of state-of-the-art localized clocks. These results extend our notion of time, detached from classical and localized philosophies.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Di Pumpo, Fabio ; Friedrich, Alexander ; Ufrecht, Christian ; Giese, Enno |
| Art des Eintrags: | Bibliographie |
| Titel: | Universality-of-clock-rates test using atom interferometry with T³ scaling |
| Sprache: | Englisch |
| Publikationsjahr: | 15 März 2023 |
| Verlag: | APS Physics |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review D |
| Jahrgang/Volume einer Zeitschrift: | 107 |
| (Heft-)Nummer: | 6 |
| DOI: | 10.1103/PhysRevD.107.064007 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Metric descriptions of gravitation, among them general relativity as today’s established theory, are founded on assumptions summarized by the Einstein equivalence principle (EEP). Its violation would hint at unknown physics and could be a leverage for the development of quantum gravity. Atomic clocks are excellent systems to probe aspects of EEP connected to (proper) time and have evolved into a working horse for tests of local position invariance (LPI). Even though the operational definition of time requires localized and idealized clocks, quantum systems like atoms allow for spatial superpositions that are inherently delocalized. While quantum experiments have tested other aspects of EEP, no competitive test of LPI has been performed or proposed allowing for an intrinsic delocalization. We extend the concepts for tests of the universality of clock rates (one facet of LPI) to atom interferometry generating delocalized quantum clocks. The proposed test depends on proper time with a favorable scaling and is, in contrast to fountain clocks, robust against initial conditions and recoil effects. It enables optical frequencies so that the projected sensitivity exceeds the one of state-of-the-art localized clocks. These results extend our notion of time, detached from classical and localized philosophies. |
| Freie Schlagworte: | Atomic, Molecular & Optical, Gravitation, Cosmology & Astrophysics, Alternative gravity theories, Atom interferometry, Cold atoms & matter waves, General relativity, Laboratory studies of gravity, Quantum metrology, Time & frequency standards |
| Zusätzliche Informationen: | Art.No.: 064007 |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Angewandte Physik 05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenoptik |
| Hinterlegungsdatum: | 08 Mär 2023 07:32 |
| Letzte Änderung: | 27 Jun 2023 10:49 |
| PPN: | 509079156 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
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