Stabilization methods for quantum mechanical resonance states of four-body systems

Yuri L. Volobuev, Donald G Truhlar

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We describe the methods used in a computer code for quantum mechanical calculations of bound and resonance states of four-body systems. Three stabilization techniques for identifying the resonances and estimating resonance widths are discussed: calculation of coordinate-space moments, application of an imaginary optical potential, and analytic continuation of a real discrete spectrum using rational polynomial interpolation. Computational implementation of these methods, recent improvements to the computer code, and parallelization strategies are described in detail.

Original languageEnglish (US)
Pages (from-to)516-526
Number of pages11
JournalComputer Physics Communications
Issue number1
StatePublished - Jun 9 2000

Bibliographical note

Funding Information:
This work was supported in part by the National Science Foundation under grant no. CHE97-25965.


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