dorsal/arxiv
View SchemaNear-Complete Teleportation of a Superposed Coherent State
| Authors | Yong Wook Cheong, Hyunjae Kim, Hai-Woong Lee |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0404173 |
| URL | https://arxiv.org/abs/quant-ph/0404173 |
| DOI | 10.1103/PhysRevA.70.032327 |
Abstract
The four Bell-type entangled coherent states, |\alpha>|-\alpha> \pm |-\alpha> |\alpha> and |\alpha>|\alpha> \pm |-\alpha> |-\alpha>, can be discriminated with a high probability using only linear optical means, as long as |\alpha| is not too small. Based on this observation, we propose a simple scheme to almost completely teleport a superposed coherent state. The nonunitary transformation, that is required to complete the teleportation, can be achieved by embedding the receiver's field state in a larger Hilbert space consisting of the field and a single atom and performing a unitary transformation on this Hilbert space.
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"abstract": "The four Bell-type entangled coherent states, |\\alpha\u003e|-\\alpha\u003e \\pm |-\\alpha\u003e\n|\\alpha\u003e and |\\alpha\u003e|\\alpha\u003e \\pm |-\\alpha\u003e |-\\alpha\u003e, can be discriminated\nwith a high probability using only linear optical means, as long as |\\alpha| is\nnot too small. Based on this observation, we propose a simple scheme to almost\ncompletely teleport a superposed coherent state. The nonunitary transformation,\nthat is required to complete the teleportation, can be achieved by embedding\nthe receiver\u0027s field state in a larger Hilbert space consisting of the field\nand a single atom and performing a unitary transformation on this Hilbert\nspace.",
"arxiv_id": "quant-ph/0404173",
"authors": [
"Yong Wook Cheong",
"Hyunjae Kim",
"Hai-Woong Lee"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.70.032327",
"title": "Near-Complete Teleportation of a Superposed Coherent State",
"url": "https://arxiv.org/abs/quant-ph/0404173"
},
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