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Entanglement of remote atomic qubits

Entanglement of remote atomic qubits
Entanglement of remote atomic qubits
We report observations of entanglement of two remote atomic qubits, achieved by generating an entangled state of an atomic qubit and a single photon at site A, transmitting the photon to site B in an adjacent laboratory through an optical fiber, and converting the photon into an atomic qubit. Entanglement of the two remote atomic qubits is inferred by performing, locally, quantum state transfer of each of the atomic qubits onto a photonic qubit and subsequent measurement of polarization correlations in violation of the Bell inequality |S|?2. We experimentally determine Sexp?=2.16±0.03. Entanglement of two remote atomic qubits, each qubit consisting of two independent spin wave excitations, and reversible, coherent transfer of entanglement between matter and light represent important advances in quantum information science
0031-9007
030405 -[4pp]
Matsukevich, D.N.
178d5791-6289-4336-a788-e591ef406613
Chanelière, T.
72549647-85a3-4a35-ad20-8606b542553d
Jenkins, S.D.
65d861fb-b85a-4927-805a-7c906fca26c6
Lan, S.-Y.
68fed702-d589-426b-b196-ca846b937f99
Kennedy, T.A.B.
68040c42-1663-4a03-87f0-b09045cf5357
Kuzmich, A.
7f959cd2-805c-4cb6-8938-8d6abcd212ee
Matsukevich, D.N.
178d5791-6289-4336-a788-e591ef406613
Chanelière, T.
72549647-85a3-4a35-ad20-8606b542553d
Jenkins, S.D.
65d861fb-b85a-4927-805a-7c906fca26c6
Lan, S.-Y.
68fed702-d589-426b-b196-ca846b937f99
Kennedy, T.A.B.
68040c42-1663-4a03-87f0-b09045cf5357
Kuzmich, A.
7f959cd2-805c-4cb6-8938-8d6abcd212ee

Matsukevich, D.N., Chanelière, T., Jenkins, S.D., Lan, S.-Y., Kennedy, T.A.B. and Kuzmich, A. (2006) Entanglement of remote atomic qubits. Physical Review Letters, 96 (3), 030405 -[4pp]. (doi:10.1103/PhysRevLett.96.030405).

Record type: Article

Abstract

We report observations of entanglement of two remote atomic qubits, achieved by generating an entangled state of an atomic qubit and a single photon at site A, transmitting the photon to site B in an adjacent laboratory through an optical fiber, and converting the photon into an atomic qubit. Entanglement of the two remote atomic qubits is inferred by performing, locally, quantum state transfer of each of the atomic qubits onto a photonic qubit and subsequent measurement of polarization correlations in violation of the Bell inequality |S|?2. We experimentally determine Sexp?=2.16±0.03. Entanglement of two remote atomic qubits, each qubit consisting of two independent spin wave excitations, and reversible, coherent transfer of entanglement between matter and light represent important advances in quantum information science

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Published date: 25 January 2006
Organisations: Applied Mathematics

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Local EPrints ID: 176293
URI: http://eprints.soton.ac.uk/id/eprint/176293
ISSN: 0031-9007
PURE UUID: ecdbb94e-a045-4b81-b76d-581c9c5434a3

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Date deposited: 07 Mar 2011 13:29
Last modified: 14 Mar 2024 02:39

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Contributors

Author: D.N. Matsukevich
Author: T. Chanelière
Author: S.D. Jenkins
Author: S.-Y. Lan
Author: T.A.B. Kennedy
Author: A. Kuzmich

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