Divergence-free WKB method

Details Divergence-free WKB method Divergence-free WKB method

2000-11-22

arxiv.org/abs/cond-mat/0011374v1

Physics

Condensed Matter

7pages 5figures revtex

Scientific paper

A new semiclassical approach to linear (L) and nonlinear (NL) one-dimensional Schr\"odinger equation (SE) is presented. Unlike the usual WKB solution, our solution does not diverge at the classical turning point. For LSE, our zeroth-order solution, when expanded in powers of \hbar, agrees with the usual WKB solution. For NLSE, our zeroth-order solution includes quantum corrections to the Thomas-Fermi solution, thereby giving a smoothly decaying wave function into the forbidden region.

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