Upper and lower bounds to the Schrödinger equation eigenvalues
✍ Scribed by Francisco M. Fernández
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 230 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0020-7608
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✦ Synopsis
Abstract
A method is presented for obtaining rapidly convergent upper and lower bounds to the eigenvalues of the Schrödinger equation for one‐dimensional and central‐field models. The logarithmic derivative of the wave function is written as a Padé approximant and the bounds are obtained by simply counting the real zeroes of the denominator.
📜 SIMILAR VOLUMES
The eigenvalue problem for a system of N coupled one-dimensional Schrodinger equations, arising in bound state in quantum mechanics, is considered. A canonical approach for the calculation of the energy eigenvalues of this system is presented. This method replaces the use of the wave functions by 2
An eigenvalue corrector is given for solving bound states in multichannel Schrodinger equations. Using the renonnalized Numerov method the multichannel equation is integrated from both left and right to the middle. The integrations define an approximate solution which is used to calculate the eigenv