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arXiv 1006.2133quant-phcond-mat.supr-con
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超导量子位的量子芝诺效应

Quantum Zeno effect with a superconducting qubit

Yuichiro Matsuzaki, Shiro Saito, Kosuke Kakuyanagi, Kouichi Semba

摘要:

研究了用超导量子比特验证量子芝诺效应的详细方案。超导量子比特受到频谱为1/f的退相噪声的影响,因此超导量子比特的衰减过程由于1/f噪声的无限相关时间而表现出自然的非指数行为。由于投影测量可以很容易地影响具有这种非指数特性的衰变动力学,超导量子比特是一个有希望观察量子芝诺效应的系统。我们研究了一系列投影测量如何改变退相过程,并提出了用超导量子比特观察量子芝诺效应的实验方法。在现有技术下,我们的预测是有可能实现的。

英文摘要:

Detailed schemes are investigated for experimental verification of Quantum Zeno effect with a superconducting qubit. A superconducting qubit is affected by a dephasing noise whose spectrum is 1/f, and so the decay process of a superconducting qubit shows a naturally non-exponential behavior due to an infinite correlation time of 1/f noise. Since projective measurements can easily influence the decay dynamics having such non-exponential feature, a superconducting qubit is a promising system to observe Quantum Zeno effect. We have studied how a sequence of projective measurements can change the dephasing process and also we have suggested experimental ways to observe Quantum Zeno effect with a superconducting qubit. It would be possible to demonstrate our prediction in the current technology.

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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