dorsal/arxiv
View SchemaDiscrete Wigner functions and the phase space representation of quantum teleportation
| Authors | Juan Pablo Paz |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0204150 |
| URL | https://arxiv.org/abs/quant-ph/0204150 |
| DOI | 10.1103/PhysRevA.65.062311 |
Abstract
We present a phase space description of the process of quantum teleportation for a system with an $N$ dimensional space of states. For this purpose we define a discrete Wigner function which is a minor variation of previously existing ones. This function is useful to represent composite quantum system in phase space and to analyze situations where entanglement between subsystems is relevant (dimensionality of the space of states of each subsystem is arbitrary). We also describe how a direct tomographic measurement of this Wigner function can be performed.
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"abstract": "We present a phase space description of the process of quantum teleportation\nfor a system with an $N$ dimensional space of states. For this purpose we\ndefine a discrete Wigner function which is a minor variation of previously\nexisting ones. This function is useful to represent composite quantum system in\nphase space and to analyze situations where entanglement between subsystems is\nrelevant (dimensionality of the space of states of each subsystem is\narbitrary). We also describe how a direct tomographic measurement of this\nWigner function can be performed.",
"arxiv_id": "quant-ph/0204150",
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"doi": "10.1103/PhysRevA.65.062311",
"title": "Discrete Wigner functions and the phase space representation of quantum teleportation",
"url": "https://arxiv.org/abs/quant-ph/0204150"
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