Semiclassical treatment of quantum chaotic transport with a tunnel barrier
arXiv:2008.07419 · doi:10.1088/1751-8121/abcf58
Abstract
We consider the problem of a semiclassical description of quantum chaotic transport, when a tunnel barrier is present in one of the leads. Using a semiclassical approach formulated in terms of a matrix model, we obtain transport moments as power series in the reflection probability of the barrier, whose coefficients are rational functions of the number of open channels M. Our results are therefore valid in the quantum regime and not only when . The expressions we arrive at are not identical with the corresponding predictions from random matrix theory, but are in fact much simpler. Both theories agree as far as we can test.
arXiv comment17 pages, 5 figures
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