dorsal/arxiv
View SchemaW state generation and effect of cavity photons on the purification of dot-like single quantum well excitons
| Authors | C. -M. Li, Y. -N. Chen, C. -W. Luo, D. -S. Chuu, J. -Y. Hsieh |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0410074 |
| URL | https://arxiv.org/abs/quant-ph/0410074 |
| DOI | 10.1142/9789812701633_0010 |
Abstract
A scheme of three-particle entanglement purification is presented in this work. The physical system undertaken for investigation is dot-like single quantum well excitons independently coupled through a single microcavity mode. The theoretical framework for the proposed scheme is based on the quantum jump approach for analyzing the progress of the trible-exciton entanglement as a series of conditional measurement has been taken on the cavity field state. We first investigate how cavity photon affects the purity of the double-exciton state and the purification efficiency in two-particle protocol. Then we extend the two-particle case and conclude that the three-exciton state can be purified into W state, which involves the one-photon-trapping phenomenon, with a high yield. Finally, an achievable setup for purification using only modest and presently feasible technologies is also proposed.
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"abstract": "A scheme of three-particle entanglement purification is presented in this\nwork. The physical system undertaken for investigation is dot-like single\nquantum well excitons independently coupled through a single microcavity mode.\nThe theoretical framework for the proposed scheme is based on the quantum jump\napproach for analyzing the progress of the trible-exciton entanglement as a\nseries of conditional measurement has been taken on the cavity field state. We\nfirst investigate how cavity photon affects the purity of the double-exciton\nstate and the purification efficiency in two-particle protocol. Then we extend\nthe two-particle case and conclude that the three-exciton state can be purified\ninto W state, which involves the one-photon-trapping phenomenon, with a high\nyield. Finally, an achievable setup for purification using only modest and\npresently feasible technologies is also proposed.",
"arxiv_id": "quant-ph/0410074",
"authors": [
"C. -M. Li",
"Y. -N. Chen",
"C. -W. Luo",
"D. -S. Chuu",
"J. -Y. Hsieh"
],
"categories": [
"quant-ph"
],
"doi": "10.1142/9789812701633_0010",
"title": "W state generation and effect of cavity photons on the purification of dot-like single quantum well excitons",
"url": "https://arxiv.org/abs/quant-ph/0410074"
},
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