TY  - JOUR
AU  - Schwickert, David
AU  - Ruberti, Marco
AU  - Kolorenč, Přemys
AU  - Usenko, Sergey
AU  - Przystawik, Andreas
AU  - Baev, Karolin
AU  - Baev, Ivan
AU  - Braune, Markus
AU  - Bocklage, Lars
AU  - Czwalinna, Marie Kristin
AU  - Deinert, Sascha
AU  - Duesterer, Stefan
AU  - Hans, Andreas
AU  - Hartmann, Gregor
AU  - Haunhorst, Christian
AU  - Kuhlmann, Marion
AU  - Palutke, Steffen
AU  - Roehlsberger, Ralf
AU  - Rönsch-Schulenburg, Juliane
AU  - Schmidt, Philipp
AU  - Toleikis, Sven
AU  - Viefhaus, Jens
AU  - Martins, Michael
AU  - Knie, Andre
AU  - Kip, Detlef
AU  - Averbukh, Vitali
AU  - Marangos, Jon
AU  - Laarmann, Tim
TI  - Electronic Quantum Coherence in Glycine Molecules Probed with Ultrashort X-ray Pulses in Real Time
JO  - Science advances
VL  - 8
IS  - 22
SN  - 2375-2548
CY  - Washington, DC [u.a.]
PB  - Assoc.
M1  - PUBDB-2022-01680
M1  - arXiv:2012.04852
SP  - eabn6848
PY  - 2022
N1  - 61 pages, 12 figures
AB  - 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.
KW  - Chemical Physics (physics.chem-ph) (Other)
KW  - Optics (physics.optics) (Other)
KW  - Quantum Physics (quant-ph) (Other)
KW  - FOS: Physical sciences (Other)
LB  - PUB:(DE-HGF)16
C6  - pmid:35648864
UR  - <Go to ISI:>//WOS:000808053900034
DO  - DOI:10.1126/sciadv.abn6848
UR  - https://bib-pubdb1.desy.de/record/476317
ER  -