arXiv subjects

Gabriel Molina-Terriza

Publications and source records attributed to Gabriel Molina-Terriza.

56 records · Page 4Linked to original sources

arXiv2001

Management of the Angular Momentum of Light: Preparation of Photons in Multidimensional Vector States of Angular

We put forward schemes to prepare photons in multi-dimensional vector states of orbital angular momentum. We show realizable light distributions that yield prescribed states with finite or infinite normal modes. In particular, we show that suitable light vortex-pancakes allow the add-drop of specific vector projections. We suggest that such photons might allow the generation of it engineered quNits in multi-dimensional quantum information systems.

quant-ph↗

arXiv2001

Structural instability of vortices in Bose-Einstein condensates

In this paper we study a gaseous Bose-Einstein condensate (BEC) and show that: (i) A minimum value of the interaction is needed for the existence of stable persistent currents. (ii) Vorticity is not a fundamental invariant of the system, as there exists a conservative mechanism which can destroy a vortex and change its sign. (iii) This mechanism is suppressed by strong interactions.

cond-mat.soft↗