[HTML][HTML] Recent advances in Wigner function approaches
J Weinbub, DK Ferry - Applied Physics Reviews, 2018 - pubs.aip.org
The Wigner function was formulated in 1932 by Eugene Paul Wigner, at a time when
quantum mechanics was in its infancy. In doing so, he brought phase space representations …
quantum mechanics was in its infancy. In doing so, he brought phase space representations …
Efficient solution of the Wigner–Liouville equation using a spectral decomposition of the force field
Abstract The Wigner–Liouville equation is reformulated using a spectral decomposition of
the classical force field instead of the potential energy. The latter is shown to simplify the …
the classical force field instead of the potential energy. The latter is shown to simplify the …
Formulation of a phase space exponential operator for the Wigner transport equation accounting for the spatial variation of the effective mass
L Schulz, D Schulz - Journal of Computational Electronics, 2020 - Springer
A novel numerical approximation technique for the Wigner transport equation including the
spatial variation of the effective mass based on the formulation of an exponential operator …
spatial variation of the effective mass based on the formulation of an exponential operator …
Numerical methods for the Wigner equation with unbounded potential
Unbounded potentials are always utilized to strictly confine quantum dynamics and generate
bound or stationary states due to the existence of quantum tunneling. However, the existed …
bound or stationary states due to the existence of quantum tunneling. However, the existed …
A high order efficient numerical method for 4-D Wigner equation of quantum double-slit interferences
We propose a high order numerical method for computing time dependent 4-D Wigner
equation with unbounded potentials and study a canonical quantum double-slit interference …
equation with unbounded potentials and study a canonical quantum double-slit interference …
Wigner ensemble Monte Carlo simulation without splitting error of a GaAs resonant tunneling diode
O Muscato - Journal of Computational Electronics, 2021 - Springer
A Monte Carlo technique for the solution of the Wigner transport equation has been
developed, based on the generation and annihilation of signed particles (Nedjalkov et al. in …
developed, based on the generation and annihilation of signed particles (Nedjalkov et al. in …
Numerical Study of Transient Wigner–Poisson Model for RTDs: Numerical Method and Its Applications
H Jiang, T Lu, W Yao, W Zhang - SIAM Journal on Scientific Computing, 2023 - SIAM
The system of transient Wigner–Poisson equations (TWPEs) is a common model to describe
carrier transport in quantum devices. In this paper, we design a second-order semi-implicit …
carrier transport in quantum devices. In this paper, we design a second-order semi-implicit …
A Characteristic-Spectral-Mixed Scheme for Six-Dimensional Wigner–Coulomb Dynamics
Numerical resolution for 6-D Wigner dynamics under the Coulomb potential is faced with the
combined challenges of high dimensionality, nonlocality, oscillation, and singularity. In …
combined challenges of high dimensionality, nonlocality, oscillation, and singularity. In …
Optimization modeling and simulating of the stationary Wigner inflow boundary value problem
Z Sun, W Yao, T Lu - Journal of Scientific Computing, 2020 - Springer
The stationary Wigner inflow boundary value problem (SWIBVP) is modeled as an
optimization problem by using the idea of shooting method in this paper. To remove the …
optimization problem by using the idea of shooting method in this paper. To remove the …
A higher-order accurate operator splitting spectral method for the Wigner–Poisson system
Z Chen, H Jiang, S Shao - Journal of Computational Electronics, 2022 - Springer
An accurate description of 2-D quantum transport in a double-gate metal oxide
semiconductor field effect transistor (dgMOSFET) requires a high-resolution solver for a …
semiconductor field effect transistor (dgMOSFET) requires a high-resolution solver for a …