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Quantum Simulation
Open Quantum Systems Decoherence
Quantum Chemistry
Complex absorbing potential based Lorentzian fitting scheme and time dependent quantum transport
arXiv
Authors: Hang Xie, Yanho Kwok, Feng Jiang, Xiao Zheng, GuanHua Chen
Year
2014
Paper ID
47481
Status
Preprint
Abstract Read
~2 min
Abstract Words
67
Citations
N/A
Abstract
Based on the complex absorbing potential (CAP) method, a Lorentzian expansion scheme is developed to express the self-energy. The CAP-based Lorentzian expansion of self-energy is employed to solve efficiently the Liouville-von Neumann equation of one-electron density matrix. The resulting method is applicable for both tight-binding and first-principles models, and is used to simulate the transient currents through graphene nanoribbons and a benzene molecule sandwiched between two carbon-atom-chains.
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- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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- Based on the complex absorbing potential (CAP) method, a Lorentzian expansion scheme is developed to express the self-energy.
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