Interference of clocks:
A quantum twin paradox
Abstract
The phase of matter waves depends on proper time and is therefore susceptible to special-relativistic (kinematic) and gravitational (redshift) time dilation. Hence, it is conceivable that atom interferometers measure general-relativistic time-dilation effects. In contrast to this intuition, we show that (i) closed light-pulse interferometers without clock transitions during the pulse sequence are not sensitive to gravitational time dilation in a linear potential. (ii) They can constitute a quantum version of the special-relativistic twin paradox. (iii) Our proposed experimental geometry for a quantum-clock interferometer isolates this effect.
Details
- Organisationseinheit(en)
-
Institut für Quantenoptik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
- Externe Organisation(en)
-
Universität Ulm
University of Queensland
Texas A and M University
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
- Typ
- Artikel
- Journal
- Science advances
- Band
- 5
- ISSN
- 2375-2548
- Publikationsdatum
- 11.10.2019
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Allgemein
- Elektronische Version(en)
-
https://doi.org/10.1126/sciadv.aax8966 (Zugang:
Offen
)
https://doi.org/10.15488/10475 (Zugang: Offen )
https://doi.org/10.48550/arXiv.1905.09102 (Zugang: Offen )
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