dorsal/arxiv
View SchemaEntanglement Detection Based on Interference and Particle Counting
| Authors | Geza Toth, Christoph Simon, Juan Ignacio Cirac |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0306086 |
| URL | https://arxiv.org/abs/quant-ph/0306086 |
| DOI | 10.1103/PhysRevA.68.062310 |
| Journal | Physical Review A 68, 062310 (2003) |
Abstract
A sufficient condition for entanglement in two-mode continuous systems is constructed based on interference visibility and the uncertainty of the total particle number. The observables to be measured (particle numbers and particle number variances) are relatively easily accessible experimentally. The method may be used to detect entanglement in light fields or in Bose-Einstein condensates. In contrast to the standard approach based on entanglement witnesses, the condition is expressed in terms of an inequality which is nonlinear in expectation values.
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"abstract": "A sufficient condition for entanglement in two-mode continuous systems is\nconstructed based on interference visibility and the uncertainty of the total\nparticle number. The observables to be measured (particle numbers and particle\nnumber variances) are relatively easily accessible experimentally. The method\nmay be used to detect entanglement in light fields or in Bose-Einstein\ncondensates. In contrast to the standard approach based on entanglement\nwitnesses, the condition is expressed in terms of an inequality which is\nnonlinear in expectation values.",
"arxiv_id": "quant-ph/0306086",
"authors": [
"Geza Toth",
"Christoph Simon",
"Juan Ignacio Cirac"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.68.062310",
"journal_ref": "Physical Review A 68, 062310 (2003)",
"title": "Entanglement Detection Based on Interference and Particle Counting",
"url": "https://arxiv.org/abs/quant-ph/0306086"
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