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IMF and [Na/Fe] abundance ratios from optical and NIR Spectral Features in Early-type Galaxies

Autor: La Barbera, F., Vazdekis, A., Ferreras, I., Pasquali, A., Prieto, C. Allende, Rock, B., Aguado, D. S., Peletier, R. F.

We present a joint analysis of the four most prominent sodium-sensitive features (NaD, NaI8190, NaI1.14, and NaI2.21), in the optical and Near-Infrared spectral range, of two nearby, massive (sigma~300km/s), early-type galaxies (named XSG1 and XSG2).

Externí odkaz: http://arxiv.org/abs/1610.03853

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Possible observation of phase separation near a quantum phase transition in doubly connected ultrathin superconducting cylinders of aluminum

Autor: Wang, H., Rosario, M. M., Kurz, N. A., Rock, B. Y., Tian, M., Carrigan, P. T., Liu, Y.

The kinetic energy of superconducting electrons in an ultrathin, doubly connected superconducting cylinder, determined by the applied flux, increases as the cylinder diameter decreases, leading to a destructive regime around half-flux quanta and a su

Externí odkaz: http://arxiv.org/abs/cond-mat/0510117

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Geometrical destruction of the global phase coherence in ultrathin superconducting cylinders

Autor: Liu, Y., Zadorozhny, Yu., Rosario, M. M., Rock, B. Y., Carrigan, P. T., Wang, H.

The global phase coherence in doubly-connected superconductors leads to fluxoid quantization, allowing the superfluid velocity vs to be controlled by an applied magnetic flux. In ultrasmall samples this quantization requirement leads, surprisingly, t

Externí odkaz: http://arxiv.org/abs/cond-mat/0110220

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