EPJ QT Highlight - How does Earth’s spacetime deformation affect quantum communications?

Credit: CQT, National University of Singapore

Jan Kohlrus investigates relativitic effects to consider when setting up quantum communication systems.

The interplay and overlap between relativity and quantum theory are among the most complex and challenging open problems of modern theoretical physics. This grey area has been extensively studied on the theoretical side, sometimes following very speculative and exotic directions, while very few experiments have been proposed in a way that rigorously incorporates relativity and quantum features.

The purpose of our work is to propose feasible experiments that involve quantum fields in a relativistic framework. In our recent article in EPJ Quantum Technology, we study how observers that undergo different motion, and experience different strengths of the gravitational field, measure pulses of light that propagate from one user to another. In particular, we look at quantum communication schemes between Earth and satellite links, as well as between two satellites.

Continue reading Jan’s post here.

I’d like to thank you for the excellent job you have done. It’s indeed a great pleasure to see that so much effort during more than one year pays off so nicely with the publication of these interesting proceedings, that I believe mark one of the most important meetings on relativistic jet physics of the last years.
It’s been indeed a pleasure to work with you and I’d definitely recommend your publishing services among my colleagues.

Dr. Jose L. Gómez, Instituto de Astrofísica de Andalucía, Spain
Editor EPJ Web of Conferences vol. 61, 2013

ISSN: 2100-014X (Electronic Edition)

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