An efficient numerical scheme for the discrete Wigner transport equation via the momentum domain narrowing

作者：Kim Kyoung Youm^*; Kim Jungho; Kim Saehwa

来源：AIP Advances, 2016, 6(6): 065314.

DOI：10.1063/1.4954237

We propose a numerical scheme that narrows down the momentum domain of the Wigner function to enhance numerical efficiency. It enables us to decrease the number of mesh points while maintaining the same mesh spacing in the momentum coordinate. The proposed scheme thus not only requires less memory but can significantly reduce the computation time. To minimize resultant loss of numerical accuracy, we also propose the partial local potential averaging method.

• 出版日期2016-6