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arXiv · 1401.5016

Decoherence control by quantum decoherence itself

Katarzyna Roszak·Radim Filip·Tomáš Novotný
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Abstract

We propose a general approach of protecting a two-level system against decoherence via quantum engineering of non-classical multiple superpositions of coherent states in a non-Markovian reservoir. The scheme surprisingly only uses the system-environment interaction responsible for the decoherence and projective measurements of the two-level system. We demonstrate the method on the example of an excitonic qubit in self-assembled semiconductor quantum dots coupled to super-Ohmic reservoir of acoustic phonons.

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Katarzyna Roszak, Radim Filip, Tomáš Novotný. 2014-01-20. Decoherence control by quantum decoherence itself. https://doi.org/10.1038/srep09796

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