Forthcoming Events

05.09.2022 - 09.09.2022, Iseolago hotel, Iseo, Italy.


MUST2022 Conference- a great success!
New scientific highlights- by MUST PIs Wörner, Chergui, and Richardson
FELs of Europe prize for Jeremy Rouxel- “Development or innovative use of advanced instrumentation in the field of FELs”
Ruth Signorell wins Doron prizefor pioneering contributions to the field of fundamental aerosol science
New FAST-Fellow Uwe Thumm at ETH- lectures on Topics in Femto- and Attosecond Science
International Day of Women and Girls in Science- SSPh asked female scientists about their experiences
New scientific highlight- by MUST PIs Milne, Standfuss and Schertler
EU XFEL Young Scientist Award for Camila Bacellar,beamline scientist and group leader of the Alvra endstation at SwissFEL
Prizes for Giulia Mancini and Rebeca Gomez CastilloICO/IUPAP Young Scientist Prize in Optics & Ernst Haber 2021
Nobel Prize in Chemistry awarded to RESOLV Member Benjamin List- for the development of asymmetric organocatalysis
NCCR MUST at Scientifica 2021- Lightning, organic solar cells, and virtual molecules
#NCCRWomen- NCCR MUST celebrates 50 years women’s right to vote in Switzerland

Modeling, Simulating, and Analyzing 2D IR-Raman and 2D electronic-vibrational Spectroscopies

Date Do, 26.09.2019 - Do, 26.09.2019
Time 17:15h
Speaker Prof. Yoshitaka Tanimura, Kyoto University, Japan
Location EPF Lausanne, BCH 2201
Program Understanding dynamics in complex environments of molecular liquids and biological systems has been a central topic of investigation in chemistry and biology, because many important chemical processes occur exclusively in such media. The key feature of this system is that it describes irreversible dynamics refers to open quantum dynamics through which the primary system evolves toward the thermal equilibrium state at finite temperature. Our group have been working on this problem on the basis of the reduced equations of motion approach. In this talk, I overview our latest results for the following three topics.

1) 2D IR-Raman spectroscopy for liquid water [1].
2) Machine learning approach for modeling liquids water [2]
2) 2D electronic vibrational spectroscopies (2DEVS) for non-adiabatic transition system[3-5]

References (PDF:
[1] H. Ito and Y. Tanimura, Simulating 2D IR-Raman and Raman spectroscopies for inter-molecular and intramolecular modes of liquid water, J.Chem.Phys.144, 074201 (2016).(pdf)
[2] S. Ueno and Y. Tanimura, Modeling intermolecular and intramolecular modes of liquid water with using multiple heat baths: Data-mining approach, in preparation.
[3] T. Ikeda and Y. Tanimura, Probing photo isomerization processes by means of multi-dimensional electronic spectroscopy: The multi-state quantum hierarchal Fokker-Planck Equation approach, J. Chem. Phys. 146, 014102 (2017).(pdf)
[4] T.Ikeda and Y.Tanimura, Phase-space wavepacket dynamics of internal conversion via conical intersection: Multi-state q. Fokker-Planck eq. approach, Chem. Phys. 515, 203 (2018). (pdf)
[5] T. Ikeda and Y. Tanimura, Low-Temperature Q. Fokker-Planck and Smoluchowski Equations and Their Extension to Multistate Systems, J. Chem.Theo. Comp.15 2517 (2019). (pdf)
[6] T. Ikeda, Y. Tanimura and A. Dijkstra, Modeling and analyzing a photo-driven molecular motor system: Ratchet dynamics and non-linear optical spectra, J. Chem. Phys. 150, 114103 (2019). (pdf)

2D IR-Raman spectra of liquid water calculated from full MD simulations for (i) 2D Raman-IR-IR, (ii) 2D IR-Raman-IR and (iii) 2D IR-IR-Raman spectroscopies. (Ref. [1])

2D EVS for non-adiabatic dynamics (Ref .3)

Transient absorption spectra of a three-state system (right figure) for an overdamped case obtained from the (i) multi-state quantum Smoluchowski Eq. (MS-QSE-LT) (ii) multi-state classical Smoluchowski Eq. (MS-SE) or Zusman Eq., (iii) fewest switch surface hopping (FSSH) methods, and (iv) Ehrenfest methods, respectively. (Ref. [5])
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