|
related topics |
{photon, photons, single} |
{light, field, probe} |
{state, phys, rev} |
{bell, inequality, local} |
{cos, sin, state} |
{level, atom, field} |
{time, decoherence, evolution} |
|
Entanglement generation via phase-matched processes: different Bell
states within the linewidth
G. Brida, M. V. Chekhova, M. Genovese, L. A. Krivitsky
abstract: It is shown, theoretically and experimentally, that at any type-II
spontaneous parametric down-conversion (SPDC) phase matching, the
decoherence-free singlet Bell state is always present within the natural
bandwidth and can be filtered out by a proper spectral selection. Instead of
the frequency selection, one can perform time selection of the two-photon time
amplitude at the output of a dispersive fibre. Applications to quantum
communication are outlined.
- oai_identifier:
- oai:arXiv.org:quant-ph/0702090
- categories:
- quant-ph
- comments:
- submitted for publication
- arxiv_id:
- quant-ph/0702090
- journal_ref:
- Optics Express Vol.15, No.16, 10182-10188 (2007)
- created:
- 2007-02-09
Full article ▸
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