Coherence manipulation of quantum bits through cross-correlations

Details Coherence manipulation of quantum bits through cross-correlations Coherence manipulation of quantum bits through cross-correlations

2011-03-26

arxiv.org/abs/1103.5099v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5pagges,3figures

Scientific paper

In terms of the exact quantum master equation solution for open electronic system, we prove that the coherence of a charge qubit described by a double-dot nanostructure can be manipulated through the cross-correlations without requiring tunable inter-dot coupling. This greatly simplfies the current technology for coherence manipulation of quantum bits in nanostructures. The simplicity of precision coherence controls also makes it very promising for large-scale quantum integrated circuits.

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