Experimental certification of millions of genuinely entangled atoms in a solid
Florian Fröwis, Peter C. Strassmann, Alexey Tiranov and 6 more
Nature Communications · 2017
doi:10.1038/s41467-017-00898-6 (opens in a new tab)
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Abstract
The presence of entanglement in macroscopic systems is notoriously difficult to observe. Here, the authors develop a witness which allow them to demonstrate entanglement between millions of atoms in a solid-state quantum memory prepared by the heralded absorption of a single photon.
Abstract licence: CC BY-NC-ND
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