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Title: Förster resonance energy transfer, absorption and emission spectra in multichromophoric systems. III. Exact stochastic path integral evaluation

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4908601· OSTI ID:1557633
 [1];  [1];  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

A numerically exact path integral treatment of the absorption and emission spectra of open quantum systems is introduced that requires only the straightforward solution of a stochastic differential equation. The method converges rapidly enabling the calculation of spectra of large excitonic systems across the complete range of system parameters and for arbitrary bath spectral densities. With the numerically exact absorption and emission operators, one can also immediately compute energy transfer rates using the multi-chromophoric Förster resonant energy transfer formalism. Benchmark calculations on the emission spectra of two level systems are presented demonstrating the efficacy of the stochastic approach. This is followed by calculations of the energy transfer rates between two weakly coupled dimer systems as a function of temperature and system-bath coupling strength. It is revealed that the recently developed hybrid cumulant expansion (see Paper II) is the only perturbative method capable of generating uniformly reliable energy transfer rates and emission spectra across a broad range of system parameters.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001088
OSTI ID:
1557633
Journal Information:
Journal of Chemical Physics, Vol. 142, Issue 9; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

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Cited By (13)

Mixing of exciton and charge-transfer states in light-harvesting complex Lhca4 journal January 2016
Generalised Marcus theory for multi-molecular delocalised charge transfer journal January 2018
Förster resonance energy transfer, absorption and emission spectra in multichromophoric systems. I. Full cumulant expansions and system-bath entanglement journal March 2015
Calculation of correlated initial state in the hierarchical equations of motion method using an imaginary time path integral approach journal November 2015
How two-dimensional brick layer J-aggregates differ from linear ones: Excitonic properties and line broadening mechanisms journal April 2016
A unified stochastic formulation of dissipative quantum dynamics. I. Generalized hierarchical equations journal January 2018
Absorption matrix of multi-site systems calculated by a hybrid quantum-classical Liouville equation journal December 2019
Initial system-environment correlations via the transfer-tensor method journal December 2017
Initial System-Environment Correlations via the Transfer Tensor Method text January 2017
Theory for polariton-assisted remote energy transfer preprint January 2017
Optimal Energy Transfer in Light-Harvesting Systems journal August 2015
Generalised Marcus Theory for Multi-Molecular Delocalised Charge Transfer text January 2017
Coherent and incoherent theories for photosynthetic energy transfer text January 2019