Gravitational time dilation as a resource in quantum sensing

Autor(en)

Carlo Cepollaro, Flaminia Giacomini, Matteo G. Matteo

Abstrakt

Atomic clock interferometers are a valuable tool to test the interface between quantum theory and gravity, in particular via the measurement of gravitational time dilation in the quantum regime. Here, we investigate whether gravitational time dilation may be also used as a resource in quantum information theory. In particular, we show that for a freely falling interferometer and for a Mach-Zehnder interferometer, the gravitational time dilation may enhance the precision in estimating the gravitational acceleration for long interferometric times. To this aim, the interferometric measurements should be performed on both the path and the clock degrees of freedom.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Università degli Studi di Milano-Bicocca, Österreichische Akademie der Wissenschaften (ÖAW), Perimeter Institute for Theoretical Physics, Istituto Nazionale di Fisica Nucleare (INFN), Milano

Journal

Quantum

Band

7

Anzahl der Seiten

11

ISSN

2521-327X

DOI

https://doi.org/10.48550/arXiv.2204.03006

Publikationsdatum

03-2023

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik, 103028 Relativitätstheorie

ASJC Scopus Sachgebiete

Atomic and Molecular Physics, and Optics, Physics and Astronomy (miscellaneous)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/2febff2f-204b-4fd9-bc9b-6117ca984506