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14 papers · 1 filter
Spin-Dependent Weak Structure Functions
D. de Florian, R. Sassot
The complete next to leading logarithmic () corrections to the spin dependent weak deep inelastic structure functions and , are calculated usi…
Decay of the Sinai Well in D dimensions
A. J. Fendrik, M. J. Sánchez
We study the decay law of the Sinai Well in dimensions and relate the behavior of the decay law to internal distributions that characterize the dynamics of the system. We show…
Chaos and Semiclassical Limit in Quantum Cosmology
Esteban Calzetta, Juan Jose Gonzalez
In this paper we present a Friedmann-Robertson-Walker cosmological model conformally coupled to a massive scalar field where the WKB approximation fails to reproduce the exact solu…
Heat Kernel and Scaling of Gravitational Constants
D. A. R. Dalvit, F. D. Mazzitelli
We consider the non-local energy-momentum tensor of quantum scalar and spinor fields in -dimensional curved spaces. Working to lowest order in the curvature we show that, whil…
Cyclic Permutations in Kazama-Suzuki String Models
G. Aldazabal, I. Allekotte, E. Andres +1
Moddings by cyclic permutation symmetries are performed in 4-dimensional strings, built up from N=2 coset models of the type . For some exemplifying…
Extrinsic Time in Quantum Cosmology
S. C. Beluardi, Rafael Ferraro
An extrinsic time is identified in most isotropic and homogeneous cosmological models by matching them with the ideal clock - a parametrized system whose only "degree of freedom" i…