Multistep Quantum Master Equation Theory for Response Functions in Four Wave Mixing Electronic Spectroscopy of Multichromophoric Macromolecules
Journal Article
·
· Bulletin of the Korean Chemical Society
- Queens College of the City University of New York, Flushing, NY (United States)
This work provides an alternative derivation of third order response functions in four wave mixing spectroscopy of multichromophoric macromolecular systems considering only single exciton states. For the case of harmonic oscillator bath linearly and diagonally coupled to exciton states, closed form expressions showing all the explicit time dependences are derived. Here, these expressions can provide more solid physical basis for understanding 2-dimensional electronic spectroscopy signals. For more general cases of system-bath coupling, the quantum master equation (QME) approach is employed for the derivation of multistep time evolution equations for Green function-like operators. Solution of these equations is feasible at the level of 2nd order non-Markovian QME, and the new approach can account for inter-exciton coupling, dephasing, relaxation, and non-Markovian effects in a consistent manner.
- Research Organization:
- Queens College of the City University of New York, Flushing, NY (United States)
- Sponsoring Organization:
- US National Science Foundation CAREER; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0001393
- OSTI ID:
- 1751910
- Alternate ID(s):
- OSTI ID: 21610367
- Report Number(s):
- DOE-Queens-1393--5
- Journal Information:
- Bulletin of the Korean Chemical Society, Journal Name: Bulletin of the Korean Chemical Society Journal Issue: 3 Vol. 33; ISSN 0253-2964
- Publisher:
- Korean Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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