| 报告题目 | Detect the mHz gravitational waves by using a spinful quantum fluid |
| 报告人 | Prof. Yao Cheng |
| 报告人单位 | Tsinghua University |
| 报告时间 | 2013-09-10 |
| 报告地点 | 合肥微尺度物质科学国家实验室九楼会议室 |
| 主办单位 | 合肥微尺度物质科学国家实验室 |
| 报告介绍 | Abstract:
Based on the recent progress of the long-lived M?ssbauer state 93mNb, a mechanism is proposed to measure the mHz gravitational waves (GWs) by using the electromagnetic (EM) response of a spinful quantum fluid. Recently, F. Sorge suggested a superconductive GW detector. Passing GWs give a beating geometrical phase between two macroscopic wave functions bounded in different anisotropic shapes. To have a sufficient sensitivity from the superconductors, the detector has to be reduced to a size of femtometers. Therefore, a nuclear-type GW detector is proposed, where the sensitivity is dramatically enhanced by introducing the characteristic nuclear size. The collective EM response from the quantum fluid allows us to read the macroscopic geometrical phase from microscopic particles. GWs ? mHz with an amplitude of 10-22 are detectable. |
