Publications
95 results found
Lee CF, Johnson NF, 2002, Let the quantum games begin, Physics World
Lee CF, 2002, Exploiting randomness in quantum information processing, Physics Letters A, Vol: 301, Pages: 343-349, ISSN: 0375-9601
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.
Lee CF, Johnson NF, 2002, Quantum Comparison Machines with One-Sided Error, Quantum Information Processing, Vol: 1, Pages: 253-256
It is always possible to decide, with one-sided error, whether two quantum states are the same under a specific unitary transformation. However we show here that it is impossible to do so if the transformation is anti-linear and non-singular. This result implies that unitary and anti-unitary operations exist on an unequal footing in quantum information theory.
Lee CF, Johnson NF, 2002, QUANTUM COHERENCE, CORRELATED NOISE AND PARRONDO GAMES, Fluctuation and Noise Letters (FNL), Vol: 2, Pages: L293-L298
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