%0 Journal Article
%A Schwickert, David
%A Ruberti, Marco
%A Kolorenč, Přemys
%A Usenko, Sergey
%A Przystawik, Andreas
%A Baev, Karolin
%A Baev, Ivan
%A Braune, Markus
%A Bocklage, Lars
%A Czwalinna, Marie Kristin
%A Deinert, Sascha
%A Duesterer, Stefan
%A Hans, Andreas
%A Hartmann, Gregor
%A Haunhorst, Christian
%A Kuhlmann, Marion
%A Palutke, Steffen
%A Roehlsberger, Ralf
%A Rönsch-Schulenburg, Juliane
%A Schmidt, Philipp
%A Toleikis, Sven
%A Viefhaus, Jens
%A Martins, Michael
%A Knie, Andre
%A Kip, Detlef
%A Averbukh, Vitali
%A Marangos, Jon
%A Laarmann, Tim
%T Electronic Quantum Coherence in Glycine Molecules Probed with Ultrashort X-ray Pulses in Real Time
%J Science advances
%V 8
%N 22
%@ 2375-2548
%C Washington, DC [u.a.]
%I Assoc.
%M PUBDB-2022-01680
%M arXiv:2012.04852
%P eabn6848
%D 2022
%Z 61 pages, 12 figures
%X Here, we use x-rays to create and probe quantum coherence in the photoionized amino acid glycine. The outgoing photoelectron leaves behind the cation in a coherent superposition of quantum mechanical eigenstates. Delayed x-ray pulses track the induced coherence through resonant x-ray absorption that induces Auger decay and by photoelectron emission from sequential double photoionization. Sinusoidal temporal modulation of the detected signal at early times (0-25 fs) is observed in both measurements. Advanced ab initio many-electron simulations allow us to explain the first 25 fs of the detected coherent quantum evolution in terms of the electronic coherence. In the kinematically complete x-ray absorption measurement we monitor its dynamics for a period of 175 fs and observe an evolving modulation that may implicate the coupling of electronic to vibronic coherence at longer time scales. Our experiment provides a direct support for the existence of long-lived electronic coherence in photoionized biomolecules.
%K Chemical Physics (physics.chem-ph) (Other)
%K Optics (physics.optics) (Other)
%K Quantum Physics (quant-ph) (Other)
%K FOS: Physical sciences (Other)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:35648864
%U <Go to ISI:>//WOS:000808053900034
%R 10.1126/sciadv.abn6848
%U https://bib-pubdb1.desy.de/record/476317