Large-scale 3-D solutions of the time-dependent Dirac equation
Conference
·
OSTI ID:10116672
- Oak Ridge National Lab., TN (United States)
The authors present the numerical approach used in solving the time-dependent Dirac equation on a three-dimensional Cartesian lattice. Discretization is achieved through the lattice basis-spline collocation method, in which quantum-state vectors and coordinate-space operators are expressed in terms of basis-spline functions on a spatial lattice. All numerical procedures reduce to a series of matrix-vector operations which are performed on the Intel iPSC/860 hypercube, making full use of parallelism. The authors discuss their solutions to the problems of limited node memory and node-to-node communication overhead inherent in using distributed-memory.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10116672
- Report Number(s):
- CONF-9309176--4; ON: DE94005591
- Country of Publication:
- United States
- Language:
- English
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