Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1546461 | Physica E: Low-dimensional Systems and Nanostructures | 2010 | 6 Pages |
Abstract
Phase-space representations of quantum distributions such as the Wigner function and Kadanoff-Baym Green's functions do not have compact support which leads to difficulties for numerical and perturbative schemes in quantum transport simulations of nano-devices. We demonstrate that a useful complex-valued quantum phase-space distribution with compact support can be constructed. In many practical applications only the real part is required to obtain useful dynamical averages.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
John R. Barker,