Recently, we proposed an iteration method for solving the eigenvalue w problem of the time-independent Schrodinger equation H. Meißner and E. O. Steinborn, Ž .x Int. J. Quantum Chem. 61, 777 1997 . The eigenfunctions are expanded in terms of a Ž . basis set. The wave-function expansion coefficients
Obtaining Eigenvalues of the Schrodinger Equation by Stochastic Control Methods
✍ Scribed by Robert H. Laprade
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 366 KB
- Volume
- 136
- Category
- Article
- ISSN
- 0022-1236
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✦ Synopsis
This paper shows that each eigenvalue of the stationary Schrodinger equation can be characterized as the minimum value of a performance functional associated with a stochastic control problem. The stochastic control problem is defined for regions bounded by nodes of the solution to the Schrodinger equation. A set of admissible controls is defined and it is shown that the process defined by each control does not reach the boundary of the region being considered. It is also shown that there is a unique stationary distribution associated with each admissible control. The optimal control for this problem is defined in terms of the solution to the equation.
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