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arXiv · 1306.0670

Klein tunneling of two correlated bosons

S. Longhi·G. Della Valle
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Abstract

Reflection of two strongly interacting bosons with long-rage interaction hopping on a one-dimensional lattice scattered off by a potential step is theoretically investigated in the framework of the extended Hubbard model. The analysis shows that, in the presence of unbalanced on-site and nearest-neighbor site interaction, two strongly correlated bosons forming a bound particle state can penetrate a high barrier, despite the single particle can not. Such a phenomenon is analogous to one-dimensional Klein tunneling of a relativistic massive Dirac particle across a potential step.

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S. Longhi, G. Della Valle. 2013-06-04. Klein tunneling of two correlated bosons. https://doi.org/10.1140/epjb/e2013-40154-8

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