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Open Quantum Systems Decoherence

Decoherence of encoded quantum registers

arXiv

Authors: Stefan Borghoff, Rochus Klesse

Year

2007

Paper ID

49242

Status

Preprint

Abstract Read

~2 min

Abstract Words

Citations

N/A

Abstract

In order to eliminate disturbing effects of decoherence, encoding of quantum information in decoherence-free subspaces has been suggested. We analyze the benefits of this concept for a quantum register that is realized in a spin chain in contact with a common bosonic bath. Within a dissipation-less model we provide explicit analytical results for the average fidelity of plain and encoded quantum registers. For the investigation of dissipative spin-boson couplings we employ a master equation of Bloch-Redfield type.

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This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
It adds a 2007 reference point for readers tracking recent quantum research.
In order to eliminate disturbing effects of decoherence, encoding of quantum information in decoherence-free subspaces has been suggested.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0708.3775 [2] arXiv https://arxiv.org/abs/0708.3775 [3] Publisher https://arxiv.org/abs/0708.3775

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