Incoherently generated coherences
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We have discovered that, in specific cases, decoherence due to the interaction with the environment can be avoided by just introducing a special driving field for an open quantum system. We show that this phenomenon constitutes a new class of decoherence-free subspaces which are useful for passive preservation of quantum information and discuss a physical example.
Proceedings of the Ninth International Conference on Quantum Communication, Measurement and Computing
© 2009 American Institute of Physics. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Use hypertext link for access to conference website.
Quantum Information, Computation and Communication