Rydberg Atom Entanglements in the Weak Coupling Regime

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We present an entanglement scheme for Rydberg atoms using the van der Waals interaction phase induced by Ramsey-type pulsed interactions. This scheme realizes not only controlled phase operations between atoms at a distance larger than Rydberg blockade distance, but also various counterintuitive entanglement examples, including two-atom entanglement in the presence of a closer third atom and W-state generation for three partially blockaded atoms. Experimental realization is conducted with single rubidium atoms in optical tweezer dipole traps, to demonstrate the proposed entanglement generations with an entanglement fidelity of F = 0.59 +/- 0.11.
Publisher
American Physical Society
Issue Date
2020-01
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW LETTERS, v.124, no.3

ISSN
0031-9007
DOI
10.1103/PhysRevLett.124.033603
URI
http://hdl.handle.net/10203/272598
Appears in Collection
PH-Journal Papers(저널논문)
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