Experimental test of photonic entanglement in accelerated reference frames

Matthias Fink (), Ana Rodriguez-Aramendia, Johannes Handsteiner, Abdul Ziarkash, Fabian Steinlechner, Thomas Scheidl, Ivette Fuentes, Jacques Pienaar, Timothy C. Ralph and Rupert Ursin ()
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Matthias Fink: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3
Ana Rodriguez-Aramendia: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3
Johannes Handsteiner: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3
Abdul Ziarkash: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3
Fabian Steinlechner: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3
Thomas Scheidl: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3
Ivette Fuentes: Faculty of Physics, University of Vienna
Jacques Pienaar: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3
Timothy C. Ralph: Centre for Quantum Computation & Communication Technology, School of Mathematics and Physics, University of Queensland
Rupert Ursin: Institute for Quantum Optics and Quantum Information—Vienna (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3

Nature Communications, 2017, vol. 8, issue 1, 1-6

Abstract: Abstract 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.

Date: 2017
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DOI: 10.1038/ncomms15304

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