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Classical and Nonclassical Time Dilation for Quantum Clocks.

Authors :
Paige AJ
Plato ADK
Kim MS
Source :
Physical review letters [Phys Rev Lett] 2020 Apr 24; Vol. 124 (16), pp. 160602.
Publication Year :
2020

Abstract

Proper time, ideal clocks, and boosts are well understood classically, but subtleties arise in quantum physics. We show that quantum clocks set in motion via momentum boosts do not witness classical time dilation. However, using velocity boosts we find the ideal behavior in both cases, where the quantum clock and classical observer are set in motion. Without internal state-dependent forces additional effects arise. As such, we derive observed frequency shifts in ion trap atomic clocks, indicating a small additional shift, and also show the emergence of nonideal behavior in a theoretical clock model.

Details

Language :
English
ISSN :
1079-7114
Volume :
124
Issue :
16
Database :
MEDLINE
Journal :
Physical review letters
Publication Type :
Academic Journal
Accession number :
32383914
Full Text :
https://doi.org/10.1103/PhysRevLett.124.160602