dorsal/arxiv
View SchemaDe-Gaussification by inconclusive photon subtraction
| Authors | Stefano Olivares, Matteo G. A. Paris |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0610160 |
| URL | https://arxiv.org/abs/quant-ph/0610160 |
| DOI | 10.1134/S1054660X06110077 |
| Journal | Laser Physics vol. 16, 1533 (2006) |
Abstract
We address conditional de-Gaussification of continuous variable states by inconclusive photon subtraction (IPS) and review in details its application to bipartite twin-beam state of radiation. The IPS map in the Fock basis has been derived, as well as its counterpart in the phase-space. Teleportation assisted by IPS states is analyzed and the corresponding fidelity evaluated as a function of the involved parameters. Nonlocality of IPS states is investigated by means of different tests including displaced parity, homodyne detection, pseudospin, and displaced on/off photodetection. Dissipation and thermal noise are taken into account, as well as non unit quantum efficiency in the detection stage. We show that the IPS process, for a suitable choice of the involved parameters, improves teleportation fidelity and enhances nonlocal properties.
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"abstract": "We address conditional de-Gaussification of continuous variable states by\ninconclusive photon subtraction (IPS) and review in details its application to\nbipartite twin-beam state of radiation. The IPS map in the Fock basis has been\nderived, as well as its counterpart in the phase-space. Teleportation assisted\nby IPS states is analyzed and the corresponding fidelity evaluated as a\nfunction of the involved parameters. Nonlocality of IPS states is investigated\nby means of different tests including displaced parity, homodyne detection,\npseudospin, and displaced on/off photodetection. Dissipation and thermal noise\nare taken into account, as well as non unit quantum efficiency in the detection\nstage. We show that the IPS process, for a suitable choice of the involved\nparameters, improves teleportation fidelity and enhances nonlocal properties.",
"arxiv_id": "quant-ph/0610160",
"authors": [
"Stefano Olivares",
"Matteo G. A. Paris"
],
"categories": [
"quant-ph"
],
"doi": "10.1134/S1054660X06110077",
"journal_ref": "Laser Physics vol. 16, 1533 (2006)",
"title": "De-Gaussification by inconclusive photon subtraction",
"url": "https://arxiv.org/abs/quant-ph/0610160"
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