dorsal/arxiv
View SchemaA symmetry analyser for non-destructive Bell state detection using EIT
| Authors | S. D. Barrett, P. Kok, K. Nemoto, R. G. Beausoleil, W. J. Munro, T. P. Spiller |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0408117 |
| URL | https://arxiv.org/abs/quant-ph/0408117 |
| DOI | 10.1103/PhysRevA.71.060302 |
| Journal | Phys. Rev. A 71, 060302 (2005) |
Abstract
We describe a method to project photonic two-qubit states onto the symmetric and antisymmetric subspaces of their Hilbert space. This device utilizes an ancillary coherent state, together with a weak cross-Kerr non-linearity, generated, for example, by electromagnetically induced transparency. The symmetry analyzer is non-destructive, and works for small values of the cross-Kerr coupling. Furthermore, this device can be used to construct a non-destructive Bell state detector.
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"abstract": "We describe a method to project photonic two-qubit states onto the symmetric\nand antisymmetric subspaces of their Hilbert space. This device utilizes an\nancillary coherent state, together with a weak cross-Kerr non-linearity,\ngenerated, for example, by electromagnetically induced transparency. The\nsymmetry analyzer is non-destructive, and works for small values of the\ncross-Kerr coupling. Furthermore, this device can be used to construct a\nnon-destructive Bell state detector.",
"arxiv_id": "quant-ph/0408117",
"authors": [
"S. D. Barrett",
"P. Kok",
"K. Nemoto",
"R. G. Beausoleil",
"W. J. Munro",
"T. P. Spiller"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.71.060302",
"journal_ref": "Phys. Rev. A 71, 060302 (2005)",
"title": "A symmetry analyser for non-destructive Bell state detection using EIT",
"url": "https://arxiv.org/abs/quant-ph/0408117"
},
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