Two-qubit Projective Measurements are Universal for Quantum Computation
作者： D. W. Leung
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摘要: Nielsen [quant-ph/0108020] showed that universal quantum computation is possible given memory and the ability to perform projective measurements on up 4-qubits. We describe an improved method requires only 2-qubit measurements, which are both sufficient necessary. present a partially collapse $C_k$-hierarchy in indirect construction of unitary gates [Gottesman Chuang, Nature, {\bf 402} 309 (1999)], apply find discrete sets measurements.
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harvard.edu参考文章(14)
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