Tunneling transverse to a magnetic field, and how it occurs in correlated 2D electron systems

Details Tunneling transverse to a magnetic field, and how it occurs in correlated 2D electron systems Tunneling transverse to a magnetic field, and how it occurs in correlated 2D electron systems

1999-07-16

arxiv.org/abs/cond-mat/9907244v2

Phys. Rev. Lett. 84, pp. 2227-30 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.84.2227

We investigate tunneling decay in a magnetic field. Because of broken time-reversal symmetry, the standard WKB technique does not apply. The decay rate and the outcoming wave packet are found from the analysis of the set of the particle Hamiltonian trajectories and its singularities in complex space. The results are applied to tunneling from a strongly correlated 2D electron system in a magnetic field parallel to the layer. We show in a simple model that electron correlations exponentially strongly affect the tunneling rate.

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