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

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

2009-05-04

arxiv.org/abs/0905.0387v1

Physics

Quantum Physics

5.3 pages, 5figures

Scientific paper

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.

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