Massively parallel time-dependent wave-packet calculations in a classically chaotic potential

✍ Scribed by David Chasman; Robert J. Silbey; Michael Eisenberg

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 583 KB
• Volume: 175
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(90)85595-4

✦ Synopsis

The time-dependent solution to Schriidinger's equation is obtained using a parallel algorithm on a massively parallel computer. The algorithms used are reviewed and then running speed on serial and parallel architectures is contrasted. The system studied has a classical analogue which undergoes a gradual transitIon from regular to chaotic motion as a function of a parameter of the Hamiltonian. The decay of the autocorrelation function is studied. In addition, the time dependence of the information measure and spatial correlation is studied.