Tunnel Splitting in Asymmetric Double Well Potentials: An Improved WKB Calculation

Understand

We present an improved Wentzel-Kramers-Brillouin (WKB) calculation of tunnel splitting in one dimensional asymmetric double well potentials.

• We show that the tunnel splitting in general can have linear dependence on the bias energy, beside the well-known quadratic dependence.
• We demonstrate that the linear correction is greater than previously thought.