One-Qubit and Two-Qubit Codes in Noisy State Transfer

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Quantum state transfer is a procedure, which allows to exchange quantum information between stationary qubit systems. It is anticipated that the transfer will find applications in solid-state quantum computing. In this contribution, we discuss the effects of various, physically relevant models of decoherence on a toy model of six qubit linearly coupled by the exchange interaction. In many cases we observe the advantage of the two-qubit encoding, which can be associated with the fact that this encoding does not require the state initialization.
5.3 pages, 5figures

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/229287

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0905.0387
 http://arxiv.org/abs/0905.0387

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arXiv