Intensity interferometry for ultralight bosonic dark matter detection
Intensity interferometry for ultralight bosonic dark matter detection
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DOI：
10.1103/physrevd.108.015003
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发表时间：
2022-02
影响因子：
5
通讯作者：
H. Masia-Roig;N. L. Figueroa;Ariday Bordon;Joseph A. Smiga;Y. Stadnik;D. Budker;Gary P. Centers;A. Gramolin;P. Hamilton;Sami Khamis;C. Palm;S. Pustelny;A. Sushkov;A. Wickenbrock;Derek F. Jackson Kimball
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文献类型：
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作者：
H. Masia-Roig;N. L. Figueroa;Ariday Bordon;Joseph A. Smiga;Y. Stadnik;D. Budker;Gary P. Centers;A. Gramolin;P. Hamilton;Sami Khamis;C. Palm;S. Pustelny;A. Sushkov;A. Wickenbrock;Derek F. Jackson Kimball
超轻玻色子暗物质（UBDM）可以用在玻色子康普顿频率附近振荡的经典波状场来描述。如果用于直接检测UBDM相互作用的测量方案对场中的特征二次元敏感，则信号中存在近零频率（dc）分量。因此，具有给定有限带宽的探测器可用于搜索康普顿频率比其带宽大许多数量级的玻色子。这开启了一种类似于Hanbury Brown和Twiss强度干涉测量的检测方案的可能性。假设UBDM在星系引力势中被激活，随机速度会产生与康普顿频率的轻微偏差。这些结果在由动能扩散决定的时间尺度上产生强度的随机波动。为了减轻无处不在的局部低频噪声，可以利用传感器网络通过测量传感器之间的相互关系来搜索随机强度波动。这种方法本质上是宽频的，因为大范围的康普顿频率将在传感器带宽内产生可以同时搜索的近零频率分量。现有传感器网络的测量具有足够的灵敏度来搜索实验中未探索的参数空间。
Ultralight bosonic dark matter (UBDM) can be described by a classical wave-like field oscillating near the Compton frequency of the bosons. If a measurement scheme for the direct detection of UBDM interactions is sensitive to a signature quadratic in the field, then there is a near-zero-frequency (dc) component of the signal. Thus, a detector with a given finite bandwidth can be used to search for bosons with Compton frequencies many orders of magnitude larger than its bandwidth. This opens the possibility of a detection scheme analogous to Hanbury Brown and Twiss intensity interferometry. Assuming that the UBDM is virialized in the galactic gravitational potential, the random velocities produce slight deviations from the Compton frequency. These result in stochastic fluctuations of the intensity on a time scale determined by the spread in kinetic energies. In order to mitigate ubiquitous local low-frequency noise, a network of sensors can be used to search for the stochastic intensity fluctuations by measuring cross-correlation between the sensors. This method is inherently broadband, since a large range of Compton frequencies will yield near-zero-frequency components within the sensor bandwidth that can be searched for simultaneously. Measurements with existing sensor networks have sufficient sensitivity to search experimentally unexplored parameter space.