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Revision as of 17:10, 8 March 2014

Parallel bandstructure calculation of nanostructures.png

Short Description

At the Integrated Systems Laboratory, a simulation tool has been developed to compute the sub-band energies and wave functions of nanostructures such as quantum wells, nanowires, or quantum dots. The results can be used, for example, to determine the absorption coefficient of solar cells of the transport properties of nanoscale devices. Currently, a sequential solver called ARPACK is utilized to solve the required eigenvalue problems. While this approach is good for small atomic systems, it does not properly work if the size of the structures under consideration increase beyond a certain level. Your goal in this project will be to replace the sequential solver that is implemented in our tool by a parallel one. Two packages should be tested: PARPACK, which is a parallel version of ARPACK, and FEAST, a newly developed software whose features look very promising. The source code of the simulation tool will need to be modified to allow for the usage of these two solvers. An important task will be the parallelization of the structure generation and of the atom position storage scheme.

Status: Available

Looking for 1 Semester/Master student
Contact: Mathieu Luisier

Prerequisites

Experience with linear algebra solvers is preferable

Character

20% Theory
60% Model Implementation
20% Model Verification

Professor

Mathieu Luisier

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Detailed Task Description

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