Zobrazeno 1 - 10
of 1 067
pro vyhledávání: '"Vieira V"'
Publikováno v:
In Clinica e Investigacion en Ginecologia y Obstetricia April-June 2024 51(2)
Akademický článek
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This paper presents a widespread analysis of affective vocal expression classification systems. In this study, state-of-the-art acoustic features are compared to two novel affective vocal prints for the detection of emotional states: the Hilbert-Huan
Externí odkaz:
http://arxiv.org/abs/1910.01967
Publikováno v:
Phys. Rev. B 98, 245141 (2018)
We study the behaviour of the fidelity and the Uhlmann connection in two-dimensional systems of free fermions that exhibit non-trivial topological behavior. In particular, we use the fidelity and a quantity closely related to the Uhlmann factor in or
Externí odkaz:
http://arxiv.org/abs/1803.05021
Autor:
Sacramento, P. D., Vieira, V. R.
Publikováno v:
Annals of Physics 391, 216 (2018)
Mappings between models may be obtained by unitary transformations with preservation of the spectra but in general a change in the states. Non- canonical transformations in general also change the statistics of the operators involved. In these cases
Externí odkaz:
http://arxiv.org/abs/1612.09568
Akademický článek
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Autor:
Chotorlishvili, L., Toklikishvili, Z., Sukhov, A., Horley, P. P., Dugaev, V. K., Vieira, V. R., Trimper, S., Berakdar, J.
Publikováno v:
J. Appl. Phys. 114, pp 123906 (2013)
We study the role of thermal fluctuations on the spin dynamics of a thin permalloy film with a focus on the behavior of spin torque and find that the thermally assisted spin torque results in new aspects of the magnetization dynamics. In particular,
Externí odkaz:
http://arxiv.org/abs/1311.3120
Autor:
Chotorlishvili, L., Sander, D., Sukhov, A., Dugaev, V., Vieira, V. R., Komnik, A., Berakdar, J.
Publikováno v:
Phys. Rev. B 88, 085201 (2013)
We suggest a new type of nano-electromechanical resonator, the functionality of which is based on a magnetic field induced deflection of an appropriate cantilever that oscillates between nitrogen vacancy (NV) spins in daimond. Specifically, we consid
Externí odkaz:
http://arxiv.org/abs/1301.4256
Publikováno v:
Phys. Rev. B 88, 184419 (2013)
Inspired by the models of A. Rebei and G. J. Parker and A. Rebei et. al., we study a physical model which describes the behaviour of magnetic moments in a ferromagnet. The magnetic moments are associated to 3d electrons which interact with conduction
Externí odkaz:
http://arxiv.org/abs/1206.7092
Publikováno v:
Physical Review B 85, 014518 (2012)
We calculate the anomalous Hall conductance of superconductors with spin-orbit interaction and with either uniform or local magnetization. In the first case we consider a uniform ferromagnetic ordering in a spin triplet superconductor, while in the s
Externí odkaz:
http://arxiv.org/abs/1111.6748