Master equation approach to transient quantum transport in nanostructures

doi:10.1007/s11467-016-0640-z

Front. Phys.

2017, Vol. 12

Issue (4) : 127204 https://doi.org/10.1007/s11467-016-0640-z

REVIEW ARTICLE

Master equation approach to transient quantum transport in nanostructures

Pei-Yun Yang(

),Wei-Min Zhang(

)

Department of Physics and Centre for Quantum Information Science, Cheng Kung University, Tainan 70101

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Abstract

In this review article, we present a non-equilibrium quantum transport theory for transient electron dynamics in nanodevices based on exact Master equation derived with the path integral method in the fermion coherent-state representation. Applying the exact Master equation to nanodevices, we also establish the connection of the reduced density matrix and the transient quantum transport current with the Keldysh nonequilibrium Green functions. The theory enables us to study transient quantum transport in nanostructures with back-reaction effects from the contacts, with non-Markovian dissipation and decoherence being fully taken into account. In applications, we utilize the theory to specific quantum transport systems, a variety of quantum decoherence and quantum transport phenomena involving the non-Markovian memory effect are investigated in both transient and stationary scenarios at arbitrary initial temperatures of the contacts.

Keywords quantum transport Master equation open systems nanostructures

Corresponding Author(s): Pei-Yun Yang,Wei-Min Zhang

Issue Date: 25 November 2016

Cite this article:

Pei-Yun Yang,Wei-Min Zhang. Master equation approach to transient quantum transport in nanostructures[J]. Front. Phys. , 2017, 12(4): 127204.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-016-0640-z
https://academic.hep.com.cn/fop/EN/Y2017/V12/I4/127204

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