Gravitational time dilation as a resource in quantum sensing

Autor:	Cepollaro, Carlo, Giacomini, Flaminia, Paris, Matteo G. A.
Rok vydání:	2022
Předmět:	Quantum Physics General Relativity and Quantum Cosmology
Zdroj:	Quantum 7, 946 (2023)
Druh dokumentu:	Working Paper
DOI:	10.22331/q-2023-03-13-946
Popis:	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. Comment: 6 pages main text, 3 pages appendices, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2204.03006 Zobrazit plný text záznamu View this record from Arxiv