Accuracy balancing for the finite-difference-based solution of the discrete Wigner transport equation

作者：Kim Kyoung Youm^*; Kim Saehwa; Tang Ting wei

来源：Journal of Computational Electronics, 2017, 16(1): 148-154.

DOI：10.1007/s10825-016-0944-9

• Wigner function
• Quantum transport
• Numerical analysis
• Resonant tunneling diodes

The Wigner transport equation based on the Wigner function which is defined on the phase space describes two actions in orthogonal directions of the phase space: movement (diffusion) in position space and transition in momentum space. Here, we show that for the proper analysis of a resonant tunneling diode using the finite-difference-based solution of the Wigner transport equation, the degree of numerical accuracy in the calculation of the movement in position space should be balanced with that in the evaluation of the transition in momentum space.

• 出版日期2017-3