NCTS-Phys seminar by Prof. Akbar Salam at 11:00am, June. 16, 2023
消息來源：原分所
截止日期：2023-06-16
Title：A QED Theory of Mediated RET Between a Pair of Chiral Molecules
Speaker：Prof. Akbar Salam (Department of Chemistry, Wake Forest University, USA)
Time：2023/06/16 (Fri.) 11:00
Place：4F Lecture Hall, Cosmology Hall NTU (Hybrid, Webex)
Host：Dr. Liang-Yan Hsu
Meeting number: 2551 097 1695
Password: GHjMPP4py23 (44567747 from phones and video systems)
- Abstract：
- A QED [1] theory of resonance energy transfer (RET) between a pair of identical chiral
molecules by one or two neutral, passive, electric dipole polarizable bodies, is developed.
Migration of excitation energy occurs via the exchange of a single virtual photon between any
two interacting particles. Isotropic Fermi golden rule transfer rates are evaluated for direct and
bridge-mediated pathways. Rates from both routes depend on the chirality of the donor and
acceptor moieties [2-4]. For conveyance of energy to take place indirectly, a multi-level model
must be adopted for each mediator polarizability. Furthermore, the rate is found to be a
maximum when the three or four particles are collinear. Additionally, the electric dipole-dipole
rate mediated by a single chiral molecule is investigated. Useful understanding is gained of
propagation of energy between optically active entities in a complex medium [5].
[1] A. Salam, Molecular Quantum Electrodynamics, John Wiley & Sons, Inc., 2010.
[2] D. P. Craig and T. Thirunamachandran, J. Chem. Phys. 109, 1258 (1998).- [3] A. Salam, J. Phys. Chem. A 125, 3549 (2021).
[4] A. Salam, J. Chem. Phys. 157, 104110 (2022).
[5] A. Salam, J. Chem. Phys. 154, 074111 (2021).