Quantum Parallelism in Quantum Information Processing View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2002-09

AUTHORS

Miroljub Dugić, Milan M. Ćirković

ABSTRACT

We investigate distinguishability (measured by fidelity) of the initial and the final state of a qubit, which is an object of the so-called nonideal quantum measurement of the first kind. We show that the fidelity of a nonideal measurement can be greater than the fidelity of the corresponding ideal measurement. This result is somewhat counterintuitive, and can be traced back to the quantum parallelism in quantum operations, in analogy with the quantum parallelism manifested in the quantum computing theory. In particular, as the quantum parallelism in quantum computing underlies efficient quantum algorithms, the quantum parallelism in quantum information theory underlies the classically unexpected increase of fidelity. More... »

PAGES

1641-1649

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1021050932119

DOI

http://dx.doi.org/10.1023/a:1021050932119

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1004451951


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