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20 papers · 1 filter
First passage time for superstatistical Fokker-Planck models
Adrián A. Budini, Manuel O. Cáceres
The first passage time (FPT) problem is studied for superstatistical models assuming that the mesoscopic system dynamics is described by a Fokker-Planck equation. We show that all…
Width of the charge-transfer peak in the SU(N) impurity Anderson model and its relevance to non-equilibrium transport
J. Fernández, F. Lisandrini, P. Roura-Bas +2
We calculate the width and intensity of the charge-transfer peak (the one lying at the on-site energy ) in the impurity spectral density of states as a functi…
Bath-induced correlations in an infinite-dimensional Hilbert space
Marco Nizama, Manuel O. Cáceres
Quantum correlations between two free spinless dissipative distinguishable particles (interacting with a thermal bath) are studied analytically using the quantum master equation an…
Nonlocal effective actions in semiclassical gravity: thermal effects in stationary geometries
M. Elías, F. D. Mazzitelli, L. G. Trombetta
We compute the gravitational effective action by integrating out quantum matter fields in a weak gravitational field, using the Schwinger-Keldysh (in-in) formalism. We pay particul…
Vortex dynamics in -FeSe single crystals: effects of proton irradiation and small inhomogeneous stress
M. L. Amigó, N. Haberkorn, P. Pérez +2
We report on the critical current density Jc and the vortex dynamics of pristine and 3 MeV proton irradiated (cumulative dose equal to 2x10^16 cm^-2) -FeSe single crystals. We a…
Exact Exchange: a pathway for a Density Functional Theory of the Integer Quantum Hall Effect
D. Miravet, G. J. Ferreira, C. R. Proetto
It is shown here that the Exact Exchange (EE) formalism provides a natural and rigorous approach for a Density Functional Theory (DFT) of the Integer Quantum Hall Effect (IQHE). Ap…