|
related topics |
{state, phys, rev} |
{photon, photons, single} |
{alice, bob, state} |
{qubit, qubits, gate} |
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Practical quantum repeaters with linear optics and double-photon guns
Pieter Kok, Colin P. Williams, Jonathan P. Dowling
abstract: We show how to create practical, efficient, quantum repeaters, employing
double-photon guns, for long-distance optical quantum communication. The guns
create polarization-entangled photon pairs on demand. One such source might be
a semiconducter quantum dot, which has the distinct advantage over parametric
down-conversion that the probability of creating a photon pair is close to one,
while the probability of creating multiple pairs vanishes. The swapping and
purifying components are implemented by polarizing beam splitters and
probabilistic optical CNOT gates.
- oai_identifier:
- oai:arXiv.org:quant-ph/0203134
- categories:
- quant-ph
- comments:
- 4 pages, 4 figures ReVTeX
- doi:
- 10.1103/PhysRevA.68.022301
- arxiv_id:
- quant-ph/0203134
- journal_ref:
- Phys. Rev. A 68, 022301 (2003).
- created:
- 2002-03-27
Full article ▸
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