Quantum communications and quantum metrology in the spacetime of a rotating planet

Autor(en)

Jan Kohlrus, David Edward Bruschi, Jorma Louko, Ivette Fuentes

Abstrakt

We study how quantum systems that propagate in the spacetime of a rotating planet are affected by the curved background. Spacetime curvature affects wavepackets of photons propagating from Earth to a satellite, and the changes in the wavepacket encode the parameters of the spacetime. This allows us to evaluate quantitatively how quantum communications are affected by the curved spacetime background of the Earth and to achieve precise measurements of Earth’s Schwarzschild radius and equatorial angular velocity. We then provide a comparison with the state of the art in parameter estimation obtained through classical means. Satellite to satellite communications and future directions are also discussed.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

University of Nottingham, Hebrew University Jerusalem, University of York

Journal

EPJ Quantum Technology

Band

4

Anzahl der Seiten

13

ISSN

2196-0763

DOI

https://doi.org/10.1140/epjqt/s40507-017-0061-0

Publikationsdatum

04-2017

Peer-reviewed

Ja

ÖFOS 2012

103025 Quantenmechanik, 103028 Relativitätstheorie

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Control and Systems Engineering

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8b018d4e-75a1-4eca-9cdb-a4d500a6aaa6