Joachim Burgdorfer Clocking Einstein’s Photoelectric Effect: Quantum Dynamics on the Attosecond Scale
ORAL · Invited
Abstract
Joachim Burgdorfer
Observing and clocking non-equilibrium electronic dynamics in real time has become possible with the advances of attosecond pulse generation. This attosecond chronoscopy holds the promise to provide novel information on many-electron systems complementary to conventional spectroscopy. The timing of the photoelectric effect represents one of the first breakthroughs of attosecond chronoscopy. It’s extension to condensed matter opens up new opportunities to explore electronic band structures and topology, electron transport, and decoherence.
In this talk, theoretical methods for describing and analyzing quantum dynamics on the attosecond scale will be introduced. We will illustrate the timing of electronic processes with the help of a few recent prototypical examples. They include the Eisenbud-Wigner-Smith (EWS) time delays in atoms and molecules and transport time delay in layered materials, the influence of the collective screening response on electron timing, and the quest for identifying the speed limit of optoelectronics. Recent extensions to photoemission induced by strong XUV pulses beyond linear response suggest that interelectronic coherence and entanglement can be controlled and manipulated on the attosecond time scale.
Observing and clocking non-equilibrium electronic dynamics in real time has become possible with the advances of attosecond pulse generation. This attosecond chronoscopy holds the promise to provide novel information on many-electron systems complementary to conventional spectroscopy. The timing of the photoelectric effect represents one of the first breakthroughs of attosecond chronoscopy. It’s extension to condensed matter opens up new opportunities to explore electronic band structures and topology, electron transport, and decoherence.
In this talk, theoretical methods for describing and analyzing quantum dynamics on the attosecond scale will be introduced. We will illustrate the timing of electronic processes with the help of a few recent prototypical examples. They include the Eisenbud-Wigner-Smith (EWS) time delays in atoms and molecules and transport time delay in layered materials, the influence of the collective screening response on electron timing, and the quest for identifying the speed limit of optoelectronics. Recent extensions to photoemission induced by strong XUV pulses beyond linear response suggest that interelectronic coherence and entanglement can be controlled and manipulated on the attosecond time scale.
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Presenters
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Joachim E Burgdoerfer
- TU Wien
- Vienna University of Technology