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A nanospintronic universal quantum gate

✍ Scribed by S. Bandyopadhyay

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
154 KB
Volume
11
Category
Article
ISSN
1386-9477

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## Abstract An arbitrary quantum state cannot be β€œcloned” perfectly, i.e. reproduced with β€œfidelity” __F__ = 1 into __M__ > 1 states identical to the original by any conceivable physical device. The main root of this impossibility resides in the linearity of quantum mechanics. A second β€œquantum imp