0601055v1

related topics
{light, field, probe}
{level, atom, field}
{photon, photons, single}
{state, phys, rev}
{trap, ion, state}
{qubit, qubits, gate}
{bell, inequality, local}
{cos, sin, state}
{force, casimir, field}

Quantum telecommunication based on atomic cascade transitions

T. Chaneliere, D. N. Matsukevich, S. D. Jenkins, T. A. B. Kennedy, M. S. Chapman, A. Kuzmich

abstract: A quantum repeater at telecommunications wavelengths with long-lived atomic memory is proposed, and its critical elements are experimentally demonstrated using a cold atomic ensemble. Via atomic cascade emission, an entangled pair of 1530 nm and 780 nm photons is generated. The former is ideal for long-distance quantum communication, and the latter is naturally suited for mapping to a long-lived atomic memory. Together with our previous demonstration of photonic-to-atomic qubit conversion, both of the essential elements for the proposed telecommunications quantum repeater have now been realized.

oai_identifier:
oai:arXiv.org:quant-ph/0601055
categories:
quant-ph
comments:
5 pages, 4 figures
doi:
10.1103/PhysRevLett.96.093604
arxiv_id:
quant-ph/0601055
journal_ref:
Physical Review Letters 96, 093604 (2006)
created:
2006-01-10

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