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Decoherent time-dependent transport beyond the Landauer-Büttiker formulation: A quantum-drift alternative to quantum jumps
(American Physical Society, 2015-02)
We develop and implement a model for decoherence in time-dependent transport. Inspired in a dynamical formulation of the Landauer-Büttiker equations, it boils down into a form of wave function that undergoes a smooth ...
Detection of discretized single-shell penetration in mesoscopic vortex matter
(IOP Publishing, 2014-08)
We investigated configurational changes in mesoscopic vortex matter with less than thousand vortices during flux penetration in freestanding 50 μm diameter disks of Bi2Sr2CaCu2O8+δ. High-resolution AC and DC local magnetometry ...
Irreversibility with quantum trajectories
(American Physical Society, 2005-12)
Irreversibility is an important issue for many quantum processes. Loschmidt echoes, originally introduced as a way to gauge sensitivity to perturbations in quantum mechanics, have turned out to be a useful tool for its ...
Quantum dynamics and phase transitions in low-dimensional systems
(Universidad de los AndesFísicaFacultad de CienciasDepartamento de Física, 2023-06-06)
Low-dimensional systems have attracted a main interest in current condensed matter physics due to novel quantum phenomena arising from their characteristic confinement. In this work we will review the quantum dynamics of ...