论文标题
使用Transmon Qubit的直接激发对隐藏光子暗物质进行检测
Detection of hidden photon dark matter using the direct excitation of transmon qubits
论文作者
论文摘要
我们提出了一种新型的暗物质检测方法，利用超导式旋转矩的激发。假设质量为$ O（10）\μ{\ rm eV} $的隐藏光子暗物质，经典的波浪 - 落下会通过与普通光子的小动力学混合引起有效的AC电场。当它具有谐振时，这是一个连贯的驱动场，将其从基态发展到首先兴奋的状态。我们评估了测量中这种进化的速度和可观察到的激发的速度，以及对隐藏光子暗物质的搜索敏感性。 For a selected mass, one can reach $ε\sim 10^{-12}-10^{-14}$ (where $ε$ is the kinetic mixing parameter of the hidden photon) with a single standard transmon qubit.基于频率的鱿鱼的简单扩展使质量扫描能够覆盖整个$ 4-40 \μ{\ rm eV} $（$ 1-10 $ GHz）范围内的范围合理的运行时间长度。乘坐数量的灵敏度可伸缩性也使其成为超导量子计算机技术的快速发展的有前途的平台。
We propose a novel dark matter detection method utilizing the excitation of superconducting transmon qubits. Assuming the hidden photon dark matter of a mass of $O(10)\ μ{\rm eV}$, the classical wave-matter oscillation induces an effective ac electric field via the small kinetic mixing with the ordinary photon. This serves as a coherent drive field for a qubit when it is resonant, evolving it from the ground state towards the first-excited state. We evaluate the rate of such evolution and observable excitations in the measurements, as well as the search sensitivity to the hidden photon dark matter. For a selected mass, one can reach $ε\sim 10^{-12}-10^{-14}$ (where $ε$ is the kinetic mixing parameter of the hidden photon) with a single standard transmon qubit. A simple extension to the frequency-tunable SQUID-based transmon enables the mass scan to cover the whole $4-40\ μ{\rm eV}$ ($1-10$ GHz) range within a reasonable length of run time. The sensitivity scalability along the number of the qubits also makes it a promising platform in accord to the rapid evolution of the superconducting quantum computer technology.
