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arXiv quant-ph/0301086quant-phcond-matnlin.CD
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量子混沌量子算法中的纠缠与弛豫和退相干

Entanglement versus relaxation and decoherence in a quantum algorithm for quantum chaos

S. Bettelli, D. L. Shepelyansky

摘要:

我们用解析和数值的方法研究了在量子计算机中量子纠缠的行为。我们的结果表明,在一个理想的算法纠缠指数衰减的扩散弛豫率诱导的经典混沌。这种衰减下降到剩余水平,其随着量子位数n_q呈指数下降。退相干破坏剩余纠缠的速率在nq中呈指数变化。

英文摘要:

We study analytically and numerically the behavior of quantum entanglement in a quantum computer operating an efficient algorithm for quantum chaos. Our results show that in an ideal algorithm the entanglement decays exponentially with the diffusive relaxation rate induced by classical chaos. This decay goes down to a residual level which drops exponentially with the number of qubits n_q. Decoherence destroys the residual entanglement with a rate exponential in n_q.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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