dorsal/arxiv
View SchemaResilience of multi-photon entanglement under losses
| Authors | G. A. Durkin, C. Simon, J. Eisert, D. Bouwmeester |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0402053 |
| URL | https://arxiv.org/abs/quant-ph/0402053 |
| DOI | 10.1103/PhysRevA.70.062305 |
| Journal | Phys. Rev. A 70, 062305 (2004) |
Abstract
We analyze the resilience under photon loss of the bi-partite entanglement present in multi-photon states produced by parametric down-conversion. The quantification of the entanglement is made possible by a symmetry of the states that persists even under polarization-independent losses. We examine the approach of the states to the set of states with a positive partial transpose as losses increase, and calculate the relative entropy of entanglement. We find that some bi-partite distillable entanglement persists for arbitrarily high losses.
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"abstract": "We analyze the resilience under photon loss of the bi-partite entanglement\npresent in multi-photon states produced by parametric down-conversion. The\nquantification of the entanglement is made possible by a symmetry of the states\nthat persists even under polarization-independent losses. We examine the\napproach of the states to the set of states with a positive partial transpose\nas losses increase, and calculate the relative entropy of entanglement. We find\nthat some bi-partite distillable entanglement persists for arbitrarily high\nlosses.",
"arxiv_id": "quant-ph/0402053",
"authors": [
"G. A. Durkin",
"C. Simon",
"J. Eisert",
"D. Bouwmeester"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.70.062305",
"journal_ref": "Phys. Rev. A 70, 062305 (2004)",
"title": "Resilience of multi-photon entanglement under losses",
"url": "https://arxiv.org/abs/quant-ph/0402053"
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