Interference of clocks: A quantum twin paradox

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...

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Detalles Bibliográficos
Autores principales: Loriani, Sina, Friedrich, Alexander, Ufrecht, Christian, Di Pumpo, Fabio, Kleinert, Stephan, Abend, Sven, Gaaloul, Naceur, Meiners, Christian, Schubert, Christian, Tell, Dorothee, Wodey, Étienne, Zych, Magdalena, Ertmer, Wolfgang, Roura, Albert, Schlippert, Dennis, Schleich, Wolfgang P., Rasel, Ernst M., Giese, Enno
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2019
Materias:
Research Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6777965/
https://www.ncbi.nlm.nih.gov/pubmed/31620559
http://dx.doi.org/10.1126/sciadv.aax8966
Descripción
Sumario: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.

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