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arXiv 2008.12352hep-thquant-ph
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匀加速有限时间检测器的消相干

Decoherence of a uniformly accelerated finite-time detector

Helder A. S. Costa

摘要:

研究了有限时间内匀加速探测器与无质量标量场的耦合。通过考虑探测器初始处于叠加态,即量子比特态,我们发现加速度会在量子比特上引起退相干。我们的结果表明,相干损失依赖于量子比特态在布洛赫球上的极角和时间相互作用。这些参数的调整可以显著改善Unruh辐射引起的退相干程度的估计条件。

英文摘要:

We study a uniformly accelerated detector coupled to a massless scalar field for a finite time interval. By considering the detector initially prepared in a superposition state, qubit state, we find that the acceleration induces decoherence on the qubit. Our results suggest the dependence of loss of coherence on the polar angle of qubit state on a Bloch sphere and the time interaction. The adjust those parameters can significantly improve the conditions to estimate the degree of decoherence induced by Unruh radiation.

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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