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Quantum estimation of the Schwarzschild spacetime parameters of the Earth

Autor(en)
David Edward Bruschi, Animesh Datta, Rupert Ursin, Timothy C. Ralph, Ivette Fuentes
Abstrakt

We propose a quantum experiment to measure with high precision the Schwarzschild spacetime parameters of the Earth. The scheme can also be applied to measure distances by taking into account the curvature of the Earth's spacetime. As a wave packet of (entangled) light is sent from the Earth to a satellite it is redshifted and deformed due to the curvature of spacetime. Measurements after the propagation enable the estimation of the spacetime parameters. We compare our results with the state of the art, which involves classical measurement methods, and discuss what developments are required in space-based quantum experiments to improve on the current measurement of the Schwarzschild radius of the Earth.

Organisation(en)
Quantenoptik, Quantennanophysik und Quanteninformation
Externe Organisation(en)
Hebrew University Jerusalem, University of Oxford, University of Queensland, University of Leeds, University of Nottingham
Journal
Physical Review D
Band
90
Anzahl der Seiten
10
ISSN
1550-7998
DOI
https://doi.org/10.1103/PhysRevD.90.124001
Publikationsdatum
12-2014
Peer-reviewed
Ja
ÖFOS 2012
103025 Quantenmechanik, 103036 Theoretische Physik, 103026 Quantenoptik
Schlagwörter
ASJC Scopus Sachgebiete
Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous)
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/c03a3f1c-d050-45f1-99eb-188c5af2ad11