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Scheme of enzymatic reaction. Reactions rapidly take place through ‘conformational excited states’ on a two-dimensional surface expressed by fast and slow variables.


Schematic figure of water in terms of  low- (blue) and high- (red) density local structures. Thermodynamic and dynamic anomalies of water arise from the fluctuation between the local structures.


  1. T. L. C. Jansen, S. Saito, J. Jeon, and M. Cho, "Theory of coherent two-dimensional vibrational spectroscopy," J. Chem. Phys. (Perspective) 150, 100901 (17 pages) (2019) (invited).
  2. K. Kim and S. Saito, “Multiple Length and Time Scales of Dynamic Heterogeneities in Model Glass-Forming Liquids: A Systematic Analysis of Multi-Point and Multi-Time Correlations,” J. Chem. Phys. (Special Topic: Glass Transition) 138, 12A506 (13 pages) (2013) (Invited).
  3. J. Ono, S. Takada, and S. Saito, “Couplings between Hierarchical Conformational Dynamics from Multi-Time Correlation Functions and Two-Dimensional Lifetime Spectra: Application to Adenylate Kinase,” J. Chem. Phys. (Special Topic: Multidimensional Spectroscopy) 142, 212404 (13 pages) (2015)(Invited).
  4. T. Mori and S. Saito, "Conformational excitation and non-equilibrium transition facilitate enzymatic reactions: Application to Pin1 peptidyl-prolyl isomerase," J. Phys. Chem. Lett. 10, 474-480 (2019).
  5. S. Saito and B. Bagchi, "Thermodynamic picture of vitrification of water through complex specific heat and entropy: A journey through "No Man's Land"," J. Chem. Phys. 150, 054502 (14 pages) (2019).