Enhancing the absorption and energy transfer process via quantum entanglement

  title={Enhancing the absorption and energy transfer process via quantum entanglement},
  author={Xiao-Lan Zong and Wei Song and Jian Zhou and Ming Yang and Long-Bao Yu and Zhuo-Liang Cao},
  journal={Quantum Information Processing},
The quantum network model is widely used to describe the dynamics of excitation energy transfer in photosynthesis complexes. Different from the previous schemes, we explore a specific network model, which includes both light-harvesting and energy transfer process. Here, we define a rescaled measure to manifest the energy transfer efficiency from external driving to the sink, and the external driving fields are used to simulate the energy absorption process. To study the role of initial state in… Expand
1 Citations


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We study coherent energy transfer of a single excitation and quantum entanglement in a dimer, which consists of a donor and an acceptor modeled by two two-level systems. Between the donor and theExpand
Dynamics and quantumness of excitation energy transfer through a complex quantum network.
The dynamics of excitation energy transfer through a complex quantum network by a toy model consisting of three sites coupled to environments is explored and the robustness of EET efficiency under the influence of the environment is shown and the importance of quantum coherence is elucidated. Expand
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A theoretical framework for studying the role of quantum interference effects in energy transfer dynamics of molecular arrays interacting with a thermal bath within the Lindblad formalism is developed and an effective interplay between the free Hamiltonian evolution and the thermal fluctuations in the environment is demonstrated. Expand
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We investigate the role of quantum coherence in the efficiency of excitation transfer in a ring-hub arrangement of interacting two-level systems, mimicking a light-harvesting antenna connected to aExpand
The Molecular Photo-Cell: Quantum Transport and Energy Conversion at Strong Non-Equilibrium
It is found that both the non-equilibrium conditions and decoherence play a crucial role in determining the performance of the photovoltaic conversion and the optimal energy configuration of the molecular system. Expand
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Previous two-dimensional electronic spectroscopy investigations of the FMO bacteriochlorophyll complex are extended, and direct evidence is obtained for remarkably long-lived electronic quantum coherence playing an important part in energy transfer processes within this system is obtained. Expand
Complex quantum network model of energy transfer in photosynthetic complexes.
  • B. Ai, Shi-Liang Zhu
  • Physics, Medicine
  • Physical review. E, Statistical, nonlinear, and soft matter physics
  • 2012
It is demonstrated that the quantum phases may bring the other two factors, the optimal space of the pigments and multiple pathways, together to contribute the EET in photosynthetic complexes with perfect efficiency. Expand
Quantum effects in energy and charge transfer in an artificial photosynthetic complex.
A way to directly detect quantum effects in artificial photosynthetic systems using the set of exact non-Markovian equations derived for the Heisenberg operators of this photosynthesis complex in contact with a Gaussian heat bath is shown. Expand
Highly efficient energy excitation transfer in light-harvesting complexes: The fundamental role of n
This work identifies key mechanisms through which noise such as dephasing, perhaps counter intuitively, may actually aid transport through a dissipative network by opening up additional pathways for excitation transfer. Expand