Simulating angle-resolved photoemission in real-time from first principles

  • PC Department Online Seminar
  • Date: May 10, 2021
  • Time: 11:00
  • Speaker: Stephan Kümmel
  • University Bayreuth
Simulating angle-resolved photoemission in real-time from first principles
Photoemission experiments are often interpreted by relating the measured quantities to orbitals and eigenvalues of the studied system. After a short review of this usual interpretation, the talk will take a look at how photoemission can alternatively be calculated as a process in real time. Using time-dependent density functional theory, the escape of electrons after an excitation can be simulated as a time-dependent process and the kinetic energy of the outgoing wave packets can be analyzed with angular resolution. This allows to simulate angle-resolved photoemission and study, e.g., final state effects and circular dichroism.

I will also present first results for a pump-probe scenario in which a system is excited by a first electromagnetic pulse and the photoemission from the excited system is then triggered by a second pulse.

Join Zoom Meeting
https://zoom.us/j/93932558448?pwd=SEVkaTY3a0JVbExzZ0JDSUtKMmZxQT09
Meeting ID: 939 3255 8448
Passcode: 191623

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