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 the super-Ohmic reservoir of acoustic phonons.
CITATION STYLE
Roszak, K., Filip, R., & Novotný, T. (2015). Decoherence control by quantum decoherence itself. Scientific Reports, 5. https://doi.org/10.1038/srep09796
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