dorsal/arxiv
View SchemaHomodyne tomography characterization and nonlocality of a dual-mode optical qubit
| Authors | S. A. Babichev, J. Appel, A. I. Lvovsky |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0312135 |
| URL | https://arxiv.org/abs/quant-ph/0312135 |
| DOI | 10.1103/PhysRevLett.92.193601 |
| Journal | Physical Review Letters 92, 193601 (2004) |
Abstract
A single photon, delocalized over two optical modes, is characterized by means of quantum homodyne tomography. The reconstructed four-dimensional density matrix extends over the entire Hilbert space and thus reveals, for the first time, complete information about the dual-rail optical quantum bit as a state of the electromagnetic field. The experimental data violate the Bell inequality albeit with a loophole similar to the detection loophole in photon counting experiments.
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"abstract": "A single photon, delocalized over two optical modes, is characterized by\nmeans of quantum homodyne tomography. The reconstructed four-dimensional\ndensity matrix extends over the entire Hilbert space and thus reveals, for the\nfirst time, complete information about the dual-rail optical quantum bit as a\nstate of the electromagnetic field. The experimental data violate the Bell\ninequality albeit with a loophole similar to the detection loophole in photon\ncounting experiments.",
"arxiv_id": "quant-ph/0312135",
"authors": [
"S. A. Babichev",
"J. Appel",
"A. I. Lvovsky"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevLett.92.193601",
"journal_ref": "Physical Review Letters 92, 193601 (2004)",
"title": "Homodyne tomography characterization and nonlocality of a dual-mode optical qubit",
"url": "https://arxiv.org/abs/quant-ph/0312135"
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