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| Typ | Amount | VAT | Currency | Share | Status | Cost centre |
| APC | 4065.59 | 39.20 | EUR | 98.52 % | (Zahlung erfolgt) | 289 / 476151 |
| Other | 60.98 | 0.00 | EUR | 1.48 % | (Zahlung erfolgt) | 289 / 476151 |
| Sum | 4126.57 | 39.20 | EUR | |||
| Total | 4165.77 |
| Journal Article | PUBDB-2022-01680 |
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2022
Assoc.
Washington, DC [u.a.]
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Please use a persistent id in citations: doi:10.1126/sciadv.abn6848 doi:10.3204/PUBDB-2022-01680
Report No.: arXiv:2012.04852
Abstract: 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.
Keyword(s): Chemical Physics (physics.chem-ph) ; Optics (physics.optics) ; Quantum Physics (quant-ph) ; FOS: Physical sciences
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Preprint
Electronic Quantum Coherence in Glycine Molecules Probed with Ultrashort X-ray Pulses in Real Time
[10.3204/PUBDB-2022-02957]
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