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arXiv 1607.02529hep-phquant-ph
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利用量子测量技术加速暗物质轴子搜索

Accelerating dark-matter axion searches with quantum measurement technology

Huaixiu Zheng, Matti Silveri, R. T. Brierley, S. M. Girvin, K. W. Lehnert

摘要:

轴子粒子是解决量子色动力学强CP问题的一个优雅假设的结果,是宇宙学暗物质的一个合理起源。在寻找探测到轴子转化为微波光子的轴子暗物质时,与微波真空涨落相关的量子噪声将很快限制参数空间的搜索速度。在这里,我们表明,这种噪声可以部分克服,无论是通过压缩量子真空使用最近开发的约瑟夫森参数设备,或通过使用超导量子比特计数微波光子。最近证明的超导量子比特的能力,使微波光子的QND测量提供了很大的优势,破坏性的光子计数方法,如使用里德伯原子。

英文摘要:

The axion particle, a consequence of an elegant hypothesis that resolves the strong-CP problem of quantum chromodynamics, is a plausible origin for cosmological dark matter. In searches for axionic dark matter that detect the conversion of axions to microwave photons, the quantum noise associated with microwave vacuum fluctuations will soon limit the rate at which parameter space is searched. Here we show that this noise can be partially overcome either by squeezing the quantum vacuum using recently developed Josephson parametric devices, or by using superconducting qubits to count microwave photons. The recently demonstrated ability of superconducting qubits to make QND measurements of microwave photons offers great advantages over destructive photon counting methods such as those using Rydberg atoms.

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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