dorsal/arxiv
View SchemaPhoton-added state preparation via conditional measurement on a beam splitter
| Authors | M. Dakna, L. Knoll, D. -G. Welsch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9703039 |
| URL | https://arxiv.org/abs/quant-ph/9703039 |
| DOI | 10.1016/S0030-4018(97)00463-X |
Abstract
We show that conditional output measurement on a beam splitter may be used to produce photon-added states for a large class of signal-mode quantum states, such as thermal states, coherent states, squeezed states, displaced photon-number states, and coherent phase states. Combining a mode prepared in such a state and a mode prepared in a photon-number state, the state of the mode in one of the output channels of the beam splitter ``collapses'' to a photon-added state, provided that no photons are detected in the other output channel. We present analytical and numerical results, with special emphasis on photon-added coherent and squeezed vacuum states. In particular, we show that adding photons to a squeezed vacuum yields superpositions of quantum states which show all the typical features of Schr\"{o}dinger-cat-like states.
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"abstract": "We show that conditional output measurement on a beam splitter may be used to\nproduce photon-added states for a large class of signal-mode quantum states,\nsuch as thermal states, coherent states, squeezed states, displaced\nphoton-number states, and coherent phase states. Combining a mode prepared in\nsuch a state and a mode prepared in a photon-number state, the state of the\nmode in one of the output channels of the beam splitter ``collapses\u0027\u0027 to a\nphoton-added state, provided that no photons are detected in the other output\nchannel. We present analytical and numerical results, with special emphasis on\nphoton-added coherent and squeezed vacuum states. In particular, we show that\nadding photons to a squeezed vacuum yields superpositions of quantum states\nwhich show all the typical features of Schr\\\"{o}dinger-cat-like states.",
"arxiv_id": "quant-ph/9703039",
"authors": [
"M. Dakna",
"L. Knoll",
"D. -G. Welsch"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/S0030-4018(97)00463-X",
"title": "Photon-added state preparation via conditional measurement on a beam splitter",
"url": "https://arxiv.org/abs/quant-ph/9703039"
},
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