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Abstract: We study the robustness of geometric phase in the presence of parametricnoise. For that purpose we consider a simple case study, namely a semiclassicalparticle which moves adiabatically along a closed loop in a static magneticfield acquiring the Dirac phase. Parametric noise comes from the interactionwith a classical environment which adds a Brownian component to the pathfollowed by the particle. After defining a gauge invariant Dirac phase, wediscuss the first and second moments of the distribution of the Dirac phaseangle coming from the noisy trajectory.



Autor: Cosmo Lupo, Paolo Aniello

Fuente: https://arxiv.org/



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