Quantum Circuits for General Multiqubit Gates

Möttönen, Mikko, Vartiainen, Juha J., Bergholm, Ville, Salomaa, Martti M. · 2004 · Physical Review Letters

| 编号 NA090 | 主题 线路综合与等价验证 | DOI 10.1103/physrevlett.93.130502 |

摘要

摘要保留原文（英文）

摘要取自 arXiv / 出版方元数据，未作翻译，以保证与原文一致。

2004 · Physical Review Letters We consider a generic elementary gate sequence which is needed to implement a general quantum gate acting on n qubits — a unitary transformation with 4^n degrees of freedom. For synthesizing the gate sequence, a method based on the so-called cosine-sine matrix decomposition is presented. The result is optimal in the number of elementary one-qubit gates, 4^n, and scales more favorably than the previously reported decompositions requiring 4^n-2^n+1 controlled NOT gates.

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