We propose to search for dark photon and axion by employing macro coherent super radiance on the detection side. Parahydrogen molecules are pumped to their first excited states by counter-propagating laser beams. The background dark photon or axion field will interact with the paraphydrogen and trigger the collective deexcitation of the atomic system,resulting in a nonlinear amplification of the two-photon emission process called superradiance. With the superradiant amplification the current bound on dark photon and axion can be advanced by orders of magnitude.

Biography

宋宁强博士现任中国科学院理论物理所副研究员。他于2018年在纽约州立大学石溪分校，杨振宁理论物理研究所获得博士学位。2018-2021年，他在加拿大皇后大学和圆周研究所任博士后。2021-2023年他在英国利物浦大学做博士后。宋宁强的研究方向主要包括暗物质、中微子和新物理等。