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
- Organisation(s)
-
Institute of Quantum Optics
CRC 1227 Designed Quantum States of Matter (DQ-mat)
- External Organisation(s)
-
Ulm University
University of Queensland
Texas A and M University
German Aerospace Center (DLR)
- Type
- Article
- Journal
- Science advances
- Volume
- 5
- ISSN
- 2375-2548
- Publication date
- 11.10.2019
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- General
- Electronic version(s)
-
https://doi.org/10.1126/sciadv.aax8966 (Access:
Open
)
https://doi.org/10.15488/10475 (Access: Open )
https://doi.org/10.48550/arXiv.1905.09102 (Access: Open )
Cite
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