78 research outputs found

    Optical conductivity of one-dimensional doped Hubbard-Mott insulator

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    We study the optical response of a strongly correlated electron system near the metal-insulator transition using a mapping to the sine-Gordon model. With semiclassical quantization, the spectral weight is distributed between a Drude peak and absorption lines due to breathers. We calculate the Drude weight, the optical gap, and the lineshape of breather absorption.Comment: 4 pages, 2 EPS figures, REVTEX 4, a final versio

    Current and Future Prospects of Nitro-compounds as Drugs for Trypanosomiasis and Leishmaniasis

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    Fine-Scale Mapping of the 5q11.2 Breast Cancer Locus Reveals at Least Three Independent Risk Variants Regulating MAP3K1

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    MicroRNA Related Polymorphisms and Breast Cancer Risk

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