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