Monte Carlo Method for Modeling of Electron Transport in Quantum Wires
نویسندگان
چکیده
We consider a physical model of ultrafast evolution of an initial electron distribution in a quantum wire. The electron evolution is described by a quantum-kinetic equation accounting for the interaction with phonons. A Monte Carlo method has been developed for solving the equation. GRID technologies are implemented due to the large computational efforts imposed by the quantum character of the model.
منابع مشابه
Comparison of MCNP4C, 4B and 4A Monte Carlo codes when calculating electron therapy depth doses
ABSTRACT Background: accurate methods of radiation therapy dose calculation. There are different Monte Carlo codesfor simulation of photons, electrons and the coupled transport of electrons and photons. MCNPis a general purpose Monte Carlo code that can be used for electron, photon and coupledphoton-electron transport.Monte Carlo simulation of radiation transport is considered to be one of the ...
متن کاملUltra-fast Carrier Transport Simulation on the Grid. Quasi-Random Approach
The problem for simulation ultra-fast carrier transport in nano-electronics devices is a large scale computational problem and requires HPC and/or Grid computing resources. The most widely used techniques for modeling this carrier transport are Monte Carlo methods. In this work we consider a set of stochastic algorithms for solving quantum kinetic equations describing quantum effects during the...
متن کاملElectric-field and space-charge distributions in InAs/GaAs quantum-dot infrared photodetectors: ensemble Monte Carlo particle modeling
We proposed a simplified quasi-three-dimensional model for nonequilibrium electron transport in quantum dot infrared photodetectors (QDIPs) based on an ensemble Monte Carlo particle method. Invoking the developed model, we calculated the electric-field and spacecharge distributions, in InAs/GaAs and InGaAs/GaAs QDIPs. q 2003 Elsevier Science Ltd. All rights reserved.
متن کاملImportance of electron-impurity scattering for electron transport in terahertz quantum-cascade lasers
Using an ensemble Monte Carlo simulation, including both electron–electron and electron–phonon scattering as well as electron-impurity scattering, the current density, population inversion, electron temperature, and gain in two THz quantum-cascade structures are investigated and compared to measurements. We find that the inclusion of electron-impurity scattering in the calculations is crucial w...
متن کاملModeling Decoherence Effects on the Transport Properties of Mesoscopic Devices
In this paper we present a Monte Carlo technique aimed at including the effects of decoherence in mesoscopic electron transport in the scattering matrix of the system such technique is based on a phenomenological microscopic model, that captures the effect of elastic interactions in terms of a random term added to the phase of the single particle wave function. Given the random character of sca...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006