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Theory of Higgs spectroscopy

日程 : 2019年1月25日(金) 13:00 - 15:00 場所 : 物性研究所本館6階 第5セミナー室 (A615) 講師 : Dirk Manske 氏 所属 : Max Planck Institute for Solid State Research 世話人 : 松永 隆佑 (内線: 63375)
e-mail: matsunaga@issp.u-tokyo.ac.jp

Time-resolved pump-probe experiments recently attracted great interest, since they allow to detect hidden states and they provide new information on the underlying dynamics in solids in real time.

Recently, with the observation of a Higgs mode in superconductors it is now possible to investigate the superconducting order parameter, and thus the ground state, directly. By comparison with analytical calculations we now have a microscopic understanding of the Higgs mode in superconductors. After calculating the non-equilibrium response of s- and d-wave superconductors we show that such non-equilibrium Higgs spectroscopy opens a unique approach to distinguish between different symmetries of the condensate, even for new and unknown superconductors.


(公開日: 2019年01月10日)