报告题目:Gravtion-Photon Conversion in Atoms and Extremely High Frequency Gravitational Wave Dectections

报告人：梁桂荣 助理研究员（南方科技大学）

报告时间：2023年10月16日（周一）下午13:30-15:30

报告地点：浙江工业大学理学楼A二楼师生活动中心

摘 要 (Abstract): Graviton-Photon conversion (GRAPH) is an important method to detect high-frequency gravitational waves (HFGW), the basic formalism and applications will be introduced in this talk. From graviton to photon conversion (G to P), we present key features of GRAPH in a static transverse background of eletric or magnetic field; then we derive the cross section of graviton-atom interaction in a background of spherical electric field, the result makes it possible to catch MeV level gravitons from the unverse with current or upgraded neutrino facilities; we will also discuss about corresponding atrophysical souces and the limitation on their properties. From photon to graviton conversion (P to G), we introduce an experiment using entangled photon pairs with one beam of them passing through a magnetic tunnel, to examine the energy quantization of gravitational field by counting missing photons. Finally we conclude and discuss some prospects of the topic.

报告人简介(Bio): Gui-Rong Liang got his Ph.D degree in Sun Yat-Sen University (Zhuhai), and now works as post-doc researcher in Southern University of Science and Technology (Shenzhen); he used to pay an academical visit in Frankfurt Goethe University in Germany for one year. He is mainly intested in research related to gravitational theory, but also has some background of high energy nuclear physics; recently he focuses on gravitional wave and black hole physics.

邀请人：朱涛 教授