publication . Preprint . 2008

Unified Approach to Universal Cloning and Phase-Covariant Cloning

Hu, Jia-Zhong; Yu, Zong-Wen; Wang, Xiang-Bin;
Open Access English
  • Published: 26 Apr 2008
Abstract
We analyze the problem of approximate quantum cloning when the quantum state is between two latitudes on the Bloch's sphere. We present an analytical formula for the optimized 1-to-2 cloning. The formula unifies the universal quantum cloning (UQCM) and the phase covariant quantum cloning.
Subjects
arXiv: Quantitative Biology::Cell Behavior
free text keywords: Quantum Physics
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