Gravitational time dilation as a resource in quantum sensing

Carlo Cepollaro; Flaminia Giacomini; Matteo G.A. Paris

doi:10.22331/q-2023-03-13-946

Titel

Gravitational time dilation as a resource in quantum sensing

Autor*in

Carlo Cepollaro

Quantenoptik, Quantennanophysik und Quanteninformation, Fakultät für Physik, Universität Wien

Flaminia Giacomini

Perimeter Institute for Theoretical Physics

Matteo G.A. Paris

Quantum Technology Lab, Dipartimento di Fisica Aldo Pontremoli, Università degli Studi di Milano

Abstract

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.

Stichwort

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

Objekt-Typ

journal article

Sprache

Englisch [eng]

Persistent identifier

phaidra.univie.ac.at/o:2061990

DOI

10.22331/q-2023-03-13-946

Erschienen in

Titel