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16 papers · 1 filter
The longitudinal dynamic correlation and dynamic susceptibility of the isotropic XY-model on the 1d alternating superlattice
J. P. de Lima, L. L. Goncalves
The dynamic susceptibility of the isotropic XY-model (s=1/2) on the alternating superlattice (closed chain) in a transverse field is obtained exactly at arbitra…
Low Temperature Phase Transition in Sr(0.66)Ba(0.34)Nb2O6 single Crystal Fibers
J. L. B. Faria, C. W. A. Paschoal, P. T. C. Freire +5
The structural changes in Sr(0.66)Ba(0.34)Nb2O6 single crystal fibers when the temperature decreases from 295 to 10 K is investigated by dielectric constant measurements and Raman…
Field redefinitions and massive BF models in arbitrary space-time dimensions
R. R. Landim
We show that the topological massive BF theories can be written as a pure BF term through field redefinitions. The fields are rewritten as power expansion series in the inverse of…
An extended-phase-space dynamics for the generalized nonextensive thermostatistics
J. S. Andrade, M. P. Almeida, A. A. Moreira +1
We apply a variant of the Nose-Hoover thermostat to derive the Hamiltonian of a nonextensive system that is compatible with the canonical ensemble of the generalized thermostatisti…
Remarks on topological models and fractional statistics
C. A. S. Almeida
One of the most intriguing aspects of Chern-Simons-type topological models is the fractional statistics of point particles which has been shown essential for our understanding of t…
Transport Theory in the Context of the Normalized Generalized Statistics
F. Q. Potiguar, U. M. S. Costa
In this work assuming valid the equipartition theorem and using the normalized q-expectation value, we obtain, until first order approximation, the hydrodynamics equation for the g…