dorsal/arxiv
View SchemaNonclassical correlations of photon number and field components in the vacuum state
| Authors | Holger F. Hofmann, Takayoshi Kobayashi, Akira Furusawa |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9912072 |
| URL | https://arxiv.org/abs/quant-ph/9912072 |
| DOI | 10.1103/PhysRevA.62.013806 |
| Journal | Phys. Rev. A 62, 013806 (2000) |
Abstract
It is shown that the quantum jumps in the photon number n from zero to one or more photons induced by backaction evasion quantum nondemolition measurements of a quadrature component x of the vacuum light field state are strongly correlated with the quadrature component measurement results. This correlation corresponds to the operator expectation value <xnx> which is equal to one fourth for the vacuum even though the photon number eigenvalue is zero. Quantum nondemolition measurements of a quadrature component can thus provide experimental evidence of the nonclassical operator ordering dependence of the correlations between photon number and field components in the vacuum state.
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"abstract": "It is shown that the quantum jumps in the photon number n from zero to one or\nmore photons induced by backaction evasion quantum nondemolition measurements\nof a quadrature component x of the vacuum light field state are strongly\ncorrelated with the quadrature component measurement results. This correlation\ncorresponds to the operator expectation value \u003cxnx\u003e which is equal to one\nfourth for the vacuum even though the photon number eigenvalue is zero. Quantum\nnondemolition measurements of a quadrature component can thus provide\nexperimental evidence of the nonclassical operator ordering dependence of the\ncorrelations between photon number and field components in the vacuum state.",
"arxiv_id": "quant-ph/9912072",
"authors": [
"Holger F. Hofmann",
"Takayoshi Kobayashi",
"Akira Furusawa"
],
"categories": [
"quant-ph",
"physics.optics"
],
"doi": "10.1103/PhysRevA.62.013806",
"journal_ref": "Phys. Rev. A 62, 013806 (2000)",
"title": "Nonclassical correlations of photon number and field components in the vacuum state",
"url": "https://arxiv.org/abs/quant-ph/9912072"
},
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