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Ghost Displacement

Tatsi G, Zanforlin U, Buller GS, and Jeffers J. Ghost Displacement. Proceedings Volume 12133, Quantum Technologies 2022; 1213302 (2022) DOI: 10.1117/12.2621154

We describe a technique whereby a coherent amplitude can be imprinted nonlocally on to a beam of light with thermal statistics that has no phase information on average. We have successfully performed the first experimental realisation. The technique could have applications in the sharing of quantum information and in covert quantum imaging scenarios.