Coherent tunnelling: On the level splitting of local ground states in a bistable potential

H. Dekker

H. Dekker

The tunnelling propagator is determined by means of an explicit evaluation of the small energy level splittings for ground state as well as excited state doublets in a symmetric double-well potential. Squeezing the initial state is shown to generate considerable chaotic tunnelling features, which are conjectured to involve a fractal dimension.

Evgenii E. Narimanov, Gregor Hackenbroich, A. Douglas Stone

Marlin D. Harmony

Sen‐Yue Lou, Guang-jiong Ni

A particle with position–dependent mass moving in a double well potential is investigated. An exact instanton solution is given and tunnelling effect caused by it is considered. We calculate the energy of the ground state of this model by introducing some effective mass and frequency of oscillator.

A. D. Jannussis, V. Papatheou, N. Patargias +1 more