Exploiting randomness in quantum information processing

Chiu Fan Lee, Neil F. Johnson

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


We consider how randomness can be made to play a useful role in quantum information processing - in particular, for decoherence control and the implementation of quantum algorithms. For a two-level system in which the decoherence channel is non-dissipative, we show that decoherence suppression is possible if memory is present in the channel. Random switching between two potentially harmful noise sources can then provide a source of stochastic control. Such random switching can also be used in an advantageous way for the implementation of quantum algorithms.

Original languageEnglish (US)
Pages (from-to)343-349
Number of pages7
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number5-6
StatePublished - Sep 2 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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