Examining electron-boson coupling using time-resolved spectroscopy
作者： Michael Sentef , Alexander F. Kemper , Brian Moritz , James K. Freericks , Zhi-Xun Shen
DOI: 10.1103/PHYSREVX.3.041033
关键词:
摘要: Nonequilibrium pump-probe time domain spectroscopies can become an important tool to disentangle degrees of freedom whose coupling leads broad structures in the frequency domain. Here, using time-resolved solution a model photoexcited electron-phonon system we show that relaxational dynamics are directly governed by equilibrium self-energy so phonon sets window for "slow" versus "fast" recovery. The overall temporal structure this relaxation spectroscopy allows reliable and quantitative extraction strength without requiring effective temperature or making strong assumptions about underlying bare electronic band dispersion.
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