dorsal/arxiv
View SchemaSqueezed Fock state by inconclusive photon subtraction
| Authors | Stefano Olivares, Matteo G. A. Paris |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506108 |
| URL | https://arxiv.org/abs/quant-ph/0506108 |
| DOI | 10.1088/1464-4266/7/12/025 |
| Journal | J. Opt. B: Quantum and Semiclass. Opt. 7, S616 (2005) |
Abstract
We analyze in details the properties of the conditional state recently obtained by J. Wenger, et al. [Phys. Rev. Lett. {\bf 92}, 153601 (2004)] by means of inconclusive photon subtraction (IPS) on a squeezed vacuum state $S(r)\ket{0}$. The IPS process can be characterized by two parameters: the IPS transmissivity $\tau$ and the photodetection quantum efficiency $\eta$. We found that the conditional state approaches the squeezed Fock state $S(r)\ket{1}$ when $\tau,\eta \to 1$, i.e., in the limit of single-photon subtraction. For non-unit IPS transmissivity and efficiency, the conditioned state remains close to the target state, {\em i.e.} shows a high fidelity for a wide range of experimental parameters. The nonclassicality of the conditional state is also investigated and a nonclassicality threshold on the IPS parameters is derived.
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"abstract": "We analyze in details the properties of the conditional state recently\nobtained by J. Wenger, et al. [Phys. Rev. Lett. {\\bf 92}, 153601 (2004)] by\nmeans of inconclusive photon subtraction (IPS) on a squeezed vacuum state\n$S(r)\\ket{0}$. The IPS process can be characterized by two parameters: the IPS\ntransmissivity $\\tau$ and the photodetection quantum efficiency $\\eta$. We\nfound that the conditional state approaches the squeezed Fock state\n$S(r)\\ket{1}$ when $\\tau,\\eta \\to 1$, i.e., in the limit of single-photon\nsubtraction. For non-unit IPS transmissivity and efficiency, the conditioned\nstate remains close to the target state, {\\em i.e.} shows a high fidelity for a\nwide range of experimental parameters. The nonclassicality of the conditional\nstate is also investigated and a nonclassicality threshold on the IPS\nparameters is derived.",
"arxiv_id": "quant-ph/0506108",
"authors": [
"Stefano Olivares",
"Matteo G. A. Paris"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1464-4266/7/12/025",
"journal_ref": "J. Opt. B: Quantum and Semiclass. Opt. 7, S616 (2005)",
"title": "Squeezed Fock state by inconclusive photon subtraction",
"url": "https://arxiv.org/abs/quant-ph/0506108"
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