2026-04-13T05:55:15Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1073092025-07-22T16:25:57Zcom_2072_1033col_2072_452951

00925njm 22002777a 4500 dc Garcia Ruspira, Jordi author 2017-07-19 En col·laboració amb la Universitat de Barcelona (UB), la Universitat Autònoma de Barcelona (UAB) i l’Institut de Ciències Fotòniques (ICFO) We study the dissipative dynamics of a three level atom in a cascade configuration driven by two independent lasers and coupled to a semi-infinite waveguide. The coupling to the waveguide is chiral, in the sense that each transition interacts only with the waveguide modes propagating in a given direction, and this direction is opposite for the two transitions. The waveguide is terminated by a mirror which coherently feeds the photon stream emitted by one transition back to the atom. Specifically, we study the dynamics of the atom and show that, at variance with the V-scheme, it does not evolve towards a pure dark state in the stationary regime. Àrees temàtiques de la UPC::Enginyeria de la telecomunicació Quantum Optics Chiral Quantum Optics Quantum feedback Òptica quàntica Chiral Quantum Optics with three-level atoms