Accuracy of a teleported trapped field state inside a single bimodal cavity

We propose a simplified scheme to teleport a superposition of coherent states from one mode to another of the same bimodal lossy cavity. Based on current experimental capabilities, we present a calculation of the fidelity that can be achieved, demonstrating accurate teleportation if the mean photon number of each mode is at most 1.5. Our scheme applies as well for teleportation of coherent states from one mode of a cavity to another mode of a second cavity, both cavities embedded in a common reservoir.Comment: 4 pages, 2 figures, in appreciation for publication in Physical Review

Caracterização climática das séries temporais de temperatura e precipitação pluvial em Sete Lagoas, MG.

bitstream/item/55113/1/Caracterizacao-climatica.pd

Evidence for a Very Large-Scale Fractal Structure in the Universe from Cobe Measurements

In this work, we analyse the temperature fluctuations of the cosmic microwave background radiation observed by COBE and show that the distribution can be fitted by a fractal distribution with a fractal dimension $D= 1.43 \pm 0.07$. This value is in close agreement with the fractal dimension obtained by Coleman and Pietronero (1992) and Luo and Schramm (1992) from galaxy-galaxy and cluster-cluster correlations up to $\sim 100 h^{-1} Mpc$. The fact that the observed temperature fluctuations correspond to scales much larger than $100 h^{-1} Mpc$ and are signatures of the primordial density fluctuations at the recombination layer suggests that the structure of the matter at the early universe was already fractal and thus non-homogeneous on those scales. This result may have important consequences for the theoretical framework that describes the universe.Comment: 11 pages, postscript file, 2 figures available upon request. To appear in ApJ Letter

Solid wood treated by plasma jet.

Editado por Luiz Henrique Capparelli Mattoso, Alcides Leão e Elisabete Frollini

Secagem de goiabas pré-desidratadas osmoticamente a vácuo.

Descreve o processamento para obtenção de goiaba desidratada osmoticamente sob vácuo, seguida de secagem em estufa de circulação de ar, visando a agragação de valor comercia à fruta.bitstream/CNPAT-2010/9611/1/Ct-106.pd

Reconhecimento dos principais insetos-praga do maracujazeiro.

bitstream/item/19015/1/Doc-245.pdfVersão eletrônica. 1ª impressão: 2009

Procedimentos para a coleta e envio de material vegetal e insetos para análise entomológica.

bitstream/item/18942/1/Doc-252.pdfVersão eletrônica. 1ª impressão: 2009