Nature Communications
Nature Communications
5 years ago

Experimental test of photonic entanglement in accelerated reference frames

Experimental test of photonic entanglement in accelerated reference frames
Timothy C. Ralph, Rupert Ursin, Ana Rodriguez-Aramendia, Jacques Pienaar, Johannes Handsteiner, Fabian Steinlechner, , , Matthias Fink, Ivette Fuentes, Abdul Ziarkash, , Thomas Scheidl
The unification of the theory of relativity and quantum mechanics is a long-standing challenge in contemporary physics. Experimental techniques in quantum optics have only recently reached the maturity required for the investigation of quantum systems under the influence of non-inertial motion, such as being held at rest in gravitational fields, or subjected to uniform accelerations. Here, we report on experiments in which a genuine quantum state of an entangled photon pair is exposed to a series of different accelerations. We measure an entanglement witness for g-values ranging from 30 mg to up to 30 g—under free-fall as well on a spinning centrifuge—and have thus derived an upper bound on the effects of uniform acceleration on photonic entanglement.

Publisher URL: http://www.nature.com/articles/ncomms15304

DOI: 10.1038/ncomms15304

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