Integrating ultrafast and stochastic dynamics studies of Brownian motion in molecular systems and colloidal particles |
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| Institution: | 1. Department of Mechanical Systems Engineering, Asahikawa National College of Technology, 2-2-1-6 Syunkodai, Asahikawa, Hokkaido 071-8142, Japan;2. College of Design and Manufacturing Technology, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan;1. Department of Physics, Technical University of Košice, Park Komenského 2, 042 00 Košice, Slovakia;2. Laboratory of Radiation Biology, Joint Institute of Nuclear Research, 141 980 Dubna, Moscow Region, Russia;1. Photonics Lab, Department of Physics, Catholicate College, Pathanamthitta-689 645,Kerala, India;2. Baselius College, Kottayam-686 001, Kerala, India |
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| Abstract: | Ultrafast spectroscopy and stochastic dynamics studies of chemical dynamics in solution with high resolution in both space and time have been undertaken for many years, but it is still challenging to connect fundamental knowledge obtained from stroboscopic approaches at ultrashort timescales and small length scales with that obtained by directly measuring individual particle motion at longer timescales. Therefore, it is interesting, conceptually and experimentally, to understand the similarities and differences between these two approaches to the study of chemical dynamics in condensed phase systems. We discuss recent advances in the understanding of the transition from ballistic to diffusive motion and chemical reaction rate theories and describe the significance of the findings in relation to the study of thermally activated processes at multiple time and length scales. |
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| Keywords: | Ultrafast spectroscopy Optical tweezers Chemical dynamics Brownian motion |
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