Space QUEST mission proposal: Experimentally testing decoherence due to gravity

Siddarth Koduru Joshi Jacques Pienaar 1 Timothy C. Ralph 2 Luigi Cacciapuoti 3 Will Mccutcheon John Rarity 4 Dirk Giggenbach Vadim Makarov Ivette Fuentes Thomas Scheidl Erik Beckert 5 Mohamed Bourennane David Edward Bruschi Adán Cabello 6 Jose Capmany José A. Carrasco Alberto Carrasco-Casado Eleni Diamanti 7 Miloslav Duusek Dominique Elser Angelo Gulinatti 8 Robert H. Hadfield Thomas Jennewein 2 Rainer Kaltenbaek 9 Michael A. Krainak Hoi-Kwong Lo Christoph Marquardt 10 Gerard Milburn Momtchil Peev Andreas Poppe Valerio Pruneri 11 Renato Renner Christophe Salomon 12 Johannes Skaar Nikolaos Solomos Mario Stipčević Juan P. Torres Morio Toyoshima 13 Paolo Villoresi Ian Walmsley 14 Gregor Weihs Harald Weinfurter Anton Zeilinger 15 Marek Żukowski Rupert Ursin 16
Abstract : Models of quantum systems on curved space-times lack sufficient experimental verification. Some speculative theories suggest that quantum properties, such as entanglement, may exhibit entirely different behavior to purely classical systems. By measuring this effect or lack thereof, we can test the hypotheses behind several such models. For instance, as predicted by Ralph and coworkers [T C Ralph, G J Milburn, and T Downes, Phys. Rev. A, 79(2):22121, 2009, T C Ralph and J Pienaar, New Journal of Physics, 16(8):85008, 2014], a bipartite entangled system could decohere if each particle traversed through a different gravitational field gradient. We propose to study this effect in a ground to space uplink scenario. We extend the above theoretical predictions of Ralph and coworkers and discuss the scientific consequences of detecting/failing to detect the predicted gravitational decoherence. We present a detailed mission design of the European Space Agency's (ESA) Space QUEST (Space - Quantum Entanglement Space Test) mission, and study the feasibility of the mission schema.
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https://hal.sorbonne-universite.fr/hal-01671942
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Submitted on : Friday, December 22, 2017 - 5:39:15 PM
Last modification on : Monday, July 15, 2019 - 8:22:02 PM

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Siddarth Koduru Joshi, Jacques Pienaar, Timothy C. Ralph, Luigi Cacciapuoti, Will Mccutcheon, et al.. Space QUEST mission proposal: Experimentally testing decoherence due to gravity. New Journal of Physics, Institute of Physics: Open Access Journals, 2018, 20, ⟨10.1088/1367-2630/aac58b⟩. ⟨hal-01671942⟩

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