Sub-meV 质量区间是暗光子和轴子等超轻玻色暗物质的重要搜索窗口,但传统微波腔和反射盘面等探测方案在该区间的灵敏度受到限制。本报告介绍一种平行板波导的探测器,通过慢波响应和沿波导方向的相干积累,可在保持开放几何面积的同时实现导波增强。研究表明,低温铜波导可将暗光子混合参数的灵敏度推进到 10^{-15} 量级。加入外加磁场后,该方案也可扩展用于 sub-meV 轴子探测。
The sub-meV range is an important window for ultralight bosonic dark matter, including dark photons and axions, where conventional microwave cavities and dish antanna schemes face sensitivity limits. This talk presents a parallel-plate waveguide haloscope that uses slow-wave response and coherent buildup along the waveguide to achieve guided-wave enhancement while preserving an open geometry. A cryogenic copper waveguide can reach dark-photon kinetic-mixing at the $10^{-15}$ level. With an external magnetic field, the concept can be extended to sub-meV axion searches.
报告人:
邢传阳博士毕业于北京大学,曾在上海交通大学从事博士后研究,现为中国石油大学(华东)副教授。获上海市“超级博士后”和“泰山学者”青年专家等人才称号,在 Physical Review Letters 发表论文两篇。主要研究方向包括暗物质宇宙学、暗物质探测及其他新物理相关问题。
Dr. Chuan-Yang Xing received his Ph.D. from Peking University and conducted postdoctoral research at Shanghai Jiao Tong University. He is currently a faculty member at China University of Petroleum (East China). He has received the Shanghai “Super Postdoctoral” Fellowship and the Taishan Scholar Young Expert award, and has published two papers in Physical Review Letters. His research focuses on dark matter cosmology, dark matter detection, and other topics in new physics.
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Prof. Jia Liu