Conditions for optimal construction of two-qubit non-local gates
量子物理
2009-11-10 v1
摘要
Optimal implementation of quantum gates is crucial for designing a quantum computer. The necessary condition for optimal construction of a two-qubit unitary operation is obtained. It can be proved that the B gate is the unique gate that can construct a two-qubit universal circuit with only two applications, i.e. this condition is also sufficient in the case of two applications of the elementary two-qubit gate. It is also shown that one half of perfect entanglers can not simulate an arbitrary two-qubit gate with only 3 applications.
引用
@article{arxiv.quant-ph/0411058,
title = {Conditions for optimal construction of two-qubit non-local gates},
author = {Yong-Sheng Zhang and Ming-Yong Ye and Guang-Can Guo},
journal= {arXiv preprint arXiv:quant-ph/0411058},
year = {2009}
}
备注
5 pages, 1 figure