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Quantum dynamics simulation of few body Coulomb systems

✍ Scribed by Lijun Zhang

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
787 KB
Volume
83
Category
Article
ISSN
0010-4655

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✦ Synopsis

This paper describes a parallel algorithm for quantum dynamics simulations of three body Coulomb problems. The algorithm has been implemented on a SIMD (single instruction multiple data) computer (MasPar MPI). The algorithm employs the finite-difference and split operator (FD-SPO) method and variable time-step technique. A transformation of wavefunction to polar coordinates and a modified finite-difference method are introduced to reduce the number of the dimension and to handle singularities. The variable-time-step scheme improves the efficiency four times.

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