Tunneling in Fractional Quantum Mechanics

We study the tunneling through delta and double delta potentials in fractional quantum mechanics. After solving the fractional Schr\"odinger equation for these potentials, we calculate the corresponding reflection and transmission coefficients. These coefficients have a very interesting behaviour. In particular, we can have zero energy tunneling when the order of the Riesz fractional derivative is different from 2. For both potentials, the zero energy limit of the transmission coefficient is given by $\mathcal{T}_0 = \cos^2{\pi/\alpha}$, where $\alpha$ is the order of the derivative ($1 < \alpha \leq 2$).Comment: 21 pages, 3 figures. Revised version; accepted for publication in Journal of Physics A: Mathematical and Theoretica

Aspectos sanitários dos núcleos de conservação in situ de bovinos pantaneiros.

Este trabalho teve como objetivo a avaliação sorológica dos rebanhos de dois núcleos de conservação de bovinos Pantaneiros existentes na região do Pantanal (C1 em Corumbá-MS e C2 em Poconé-MT), para as seguintes enfermidades: brucelose, tuberculose, leptospirose, neosporose, toxoplasmose, leucose, rinotraqueíte infecciosa bovina (IBR) e diarréia viral bovina (BVD).bitstream/item/79834/1/BP103.pd