Setting up tunneling conditions by means of Bohmian mechanics

Details Setting up tunneling conditions by means of Bohmian mechanics Setting up tunneling conditions by means of Bohmian mechanics

2011-04-07

arxiv.org/abs/1104.1298v2

J. Phys. A: Math. Theor. 44, 485301 (2011)

Physics

Quantum Physics

18 pages, 4 figures

Scientific paper

10.1088/1751-8113/44/48/485301

Usually tunneling is established after imposing some matching conditions on the (time-independent) wave function and its first derivative at the boundaries of a barrier. Here an alternative scheme is proposed to determine tunneling and estimate transmission probabilities in time-dependent problems, which takes advantage of the trajectory picture provided by Bohmian mechanics. From this theory a general functional expression for the transmission probability in terms of the system initial state can be reached. This expression is used here to analyze tunneling properties and estimate transmissions in the case of initial Gaussian wave packets colliding with ramp-like barriers.

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