報告摘要:

Observing and clocking non-equilibrium electronic dynamics in real time has developed into one of the key areas of attosecond physics. 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. Its extension to condensed matter opens up new opportunities to explore electronic band structures and topology, electron transport, and decoherence. 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, the quest for identifying the speed limit of optoelectronics, and timing of valleytronics in graphene.

報告人簡介：

Joachim Burgdörfer是維也納工業大學理論物理研究所教授，奧地利科學院院士、奧地利科學院通訊院士、美國物理學會會士、匈牙利厄缶物理學會名譽會員、匈牙利科學院名譽會員，曾榮獲日本理化學研究所傑出科學家獎、校長研究與創意成就獎等。Burgdörfer教授的研究領域包括超強超短脈沖與原子、分子、表面及固體的相互作用，低維系統的結構與傳輸特性，帶電粒子與物質相互作用，以及含時多體系統（含時密度泛函理論TDDFT和含時二體約化密度矩陣TD-2RDM）的理論模拟等。(450 publications, h-index 57, ~14000 citations.)

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