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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4464181 | PMC |
| http://dx.doi.org/10.1038/srep09796 | DOI Listing |
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