Corpus ID: 16592929

Effect of Anharmonicity on the WKB Energy Splitting in a Double Well Potential

@article{Park1996EffectOA,
  title={Effect of Anharmonicity on the WKB Energy Splitting in a Double Well Potential},
  author={Chang-Soo Park and Soo-Young Lee and Jae-Rok Kahng and Sahng-kyoon Yoo and D. K. Park and C. H. Lee and Eui-soon Yim},
  journal={arXiv: Quantum Physics},
  year={1996}
}
We investigate the effect of anharmonicity on the WKB approximation in a double well potential. By incorporating the anharmonic perturbation into the WKB energy splitting formula we show that the WKB approximation can be greatly improved in the region over which the tunneling is appreciable. We also observe that the usual WKB results can be obtained from our formalism as a limiting case in which the two potential minima are far apart. 

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