dorsal/arxiv
View SchemaAtomic entanglement generation with reduced decoherence via four-wave mixing
| Authors | C. Genes, P. R. Berman |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0604192 |
| URL | https://arxiv.org/abs/quant-ph/0604192 |
| DOI | 10.1103/PhysRevA.73.063828 |
| Journal | Phys. Rev. A 73, 063828 (2006) |
Abstract
In most proposals for the generation of entanglement in large ensembles of atoms via projective measurements, the interaction with the vacuum is responsible for both the generation of the signal that is detected and the spin depolarization or decoherence. In consequence, one has to usually work in a regime where the information aquisition via detection is sufficiently slow (weak measurement regime) such as not to strongly disturb the system. We propose here a four-wave mixing scheme where, owing to the pumping of the atomic system into a dark state, the polarization of the ensemble is not critically affected by spontaneous emission, thus allowing one to work in a strong measurement regime.
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"abstract": "In most proposals for the generation of entanglement in large ensembles of\natoms via projective measurements, the interaction with the vacuum is\nresponsible for both the generation of the signal that is detected and the spin\ndepolarization or decoherence. In consequence, one has to usually work in a\nregime where the information aquisition via detection is sufficiently slow\n(weak measurement regime) such as not to strongly disturb the system. We\npropose here a four-wave mixing scheme where, owing to the pumping of the\natomic system into a dark state, the polarization of the ensemble is not\ncritically affected by spontaneous emission, thus allowing one to work in a\nstrong measurement regime.",
"arxiv_id": "quant-ph/0604192",
"authors": [
"C. Genes",
"P. R. Berman"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevA.73.063828",
"journal_ref": "Phys. Rev. A 73, 063828 (2006)",
"title": "Atomic entanglement generation with reduced decoherence via four-wave mixing",
"url": "https://arxiv.org/abs/quant-ph/0604192"
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