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      Chen, Lipeng (13)
      Zhao, Yang (13)
      Zhou, Nengji (4)Chernyak, Vladimir (2)Fujihashi, Yuta (2)Wang, Lu (2)Benito-Matías, Enrique (1)Deng, Tianrui (1)Domcke, Wolfgang (1)Gelin, Maxim F. (1)... View MoreDate2017 (4)2016 (3)2015 (4)2014 (2)SubjectScience (5)Engineering (2)Bloch oscillations (1)Coherent states (1)Density-matrix (1)Energy conversion (1)Frenkel Excitons (1)Hilbert Space (1)Perturbation Theory (1)Phase diagrams (1)... View More

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      Finite-temperature time-dependent variation with multiple Davydov states 

      Wang, Lu; Fujihashi, Yuta; Chen, Lipeng; Zhao, Yang (2017)
      The Dirac-Frenkel time-dependent variational approach with Davydov Ansätze is a sophisticated, yet efficient technique to obtain an accurate solution to many-body Schrödinger equations for energy and charge transfer dynamics ...
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      Elucidating the enhancement in optical properties of low band gap polymers by tuning the structure of alkyl side chains 

      Lu, Jing; Yao, Yao; Shenai, Prathamesh Mahesh; Chen, Lipeng; Zhao, Yang (2015)
      We carry out a computational study of optical properties of two novel 5,6-difluorobenzo{[}c{]}{[}1,2,5{]}-thiadiazole-based polymers, PFBT-T12TT and PFBT-T20TT, aimed at elucidating the remarkably higher potential for ...
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      Superradiance at the localization-delocalization crossover in tubular chlorosomes 

      Molina, Rafael A.; Benito-Matías, Enrique; Somoza, Alejandro D.; Chen, Lipeng; Zhao, Yang (2016)
      We study the effect of disorder on spectral properties of tubular chlorosomes in green sulfur bacteria Cf. aurantiacus. Employing a Frenkel-exciton Hamiltonian with diagonal and off-diagonal disorder consistent with spectral ...
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      Finite temperature dynamics of a Holstein polaron : the thermo-field dynamics approach 

      Chen, Lipeng; Zhao, Yang (2017)
      Combining the multiple Davydov D2 Ansatz with the method of thermo-field dynamics, we study finite temperature dynamics of a Holstein polaron on a lattice. It has been demonstrated, using the hierarchy equations of motion ...
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      Variational dynamics of the sub-Ohmic spin-boson model on the basis of multiple Davydov D1 states 

      Wang, Lu; Chen, Lipeng; Zhou, Nengji; Zhao, Yang (2016)
      Dynamics of the sub-Ohmic spin-boson model is investigated by employing a multitude of the Davydov D1 trial states, also known as the multi-D1Ansatz. Accuracy in dynamics simulations is improved significantly over the ...
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      Transient dynamics of a one-dimensional Holstein polaron under the influence of an external electric field 

      Huang, Zhongkai; Chen, Lipeng; Zhou, Nengji; Zhao, Yang (2017)
      Following the Dirac-Frenkel time-dependent variational principle, transient dynamics of a one-dimensional Holstein polaron with diagonal and off-diagonal exciton-phonon coupling in an external electric field is studied by ...
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      Dynamics of the two-spin spin-boson model with a common bath 

      Deng, Tianrui; Yan, Yiying; Chen, Lipeng; Zhao, Yang (2016)
      Dynamics of the two-spin spin-boson model in the presence of Ohmic and sub-Ohmic baths is investigated by employing a multitude of the Davydov D1 trial states, also known as the multi-D1 Ansatz. Its accuracy in dynamics ...
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      Theory of femtosecond coherent double-pump single-molecule spectroscopy : application to light harvesting complexes 

      Chen, Lipeng; Gelin, Maxim F.; Domcke, Wolfgang; Zhao, Yang (2015)
      We develop a first principles theoretical description of femtosecond double-pump single-molecule signals of molecular aggregates. We incorporate all singly-excited electronic states and vibrational modes with significant ...
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      Effect of high-frequency modes on singlet fission dynamics 

      Fujihashi, Yuta; Chen, Lipeng; Ishizaki, Akihito; Wang, Junling; Zhao, Yang (2017)
      Singlet fission is a spin-allowed energy conversion process whereby a singlet excitation splits into two spin-correlated triplet excitations residing on adjacent molecules and has a potential to dramatically increase the ...
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      Dephasing and dissipation in a source-drain model of light-harvesting systems 

      Xiong, Shi-Jie; Chen, Lipeng; Zhao, Yang (2014)
      The energy transport process in natural-light-harvesting systems is investigated by solving the time-dependent Schrödinger equation for a source–network–drain model incorporating the effects of dephasing and dissipation, ...
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