The least-squares stabilization method for resonance eigenvalues

✍ Scribed by Ersin Yurtsever

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 277 KB
• Volume: 137
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(87)80631-0

✦ Synopsis

A variation on the stabilization method of Hazi and Taylor is proposed. The expectation value of H2 is known to be sensitive to changes in the wavefunction and can be used to detect the presence and the position of the resonances. By systematically increasing the size of the basis and analyzing the convergence behaviour, it is possible to obtain accurate information about the resonance states. For a model problem with a single resonance, the results are in good agreement with complex coordinate calculations.