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Science 23 January 2009:
Vol. 323. no. 5913, pp. 486 - 489
DOI: 10.1126/science.1167209
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Reports

Quantum Teleportation Between Distant Matter Qubits

S. Olmschenk,1* D. N. Matsukevich,1 P. Maunz,1 D. Hayes,1 L.-M. Duan,2 C. Monroe1

Quantum teleportation is the faithful transfer of quantum states between systems, relying on the prior establishment of entanglement and using only classical communication during the transmission. We report teleportation of quantum information between atomic quantum memories separated by about 1 meter. A quantum bit stored in a single trapped ytterbium ion (Yb+) is teleported to a second Yb+ atom with an average fidelity of 90% over a replete set of states. The teleportation protocol is based on the heralded entanglement of the atoms through interference and detection of photons emitted from each atom and guided through optical fibers. This scheme may be used for scalable quantum computation and quantum communication.

1 Joint Quantum Institute (JQI) and Department of Physics, University of Maryland, College Park, MD 20742, USA.
2 FOCUS Center and Department of Physics, University of Michigan, Ann Arbor, MI 48109, USA.

* To whom correspondence should be addressed. E-mail: smolms{at}umd.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Where Is My Quantum Computer?.
P. Hemmer and J. Wrachtrup (2009)
Science 324, 473-474
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