Search results for "Fotònica"

showing 2 items of 2 documents

Soliton topology versus discrete symmetry in optical lattices

2005

We address the existence of vortex solitons supported by azimuthally modulated lattices and reveal how the global lattice discrete symmetry has fundamental implications on the possible topological charges of solitons. We set a general ``charge rule'' using group-theory techniques, which holds for all lattices belonging to a given symmetry group. Focusing in the case of Bessel lattices allows us to derive also a overall stability rule for the allowed vortex solitons.

PhysicsOptical communicationsHigh Energy Physics::LatticeFotònicaGeneral Physics and AstronomyFOS: Physical sciencesPattern Formation and Solitons (nlin.PS)Symmetry groupTopologyNonlinear Sciences - Pattern Formation and SolitonsVortexsymbols.namesake:Enginyeria de la telecomunicació::Telecomunicació òptica [Àrees temàtiques de la UPC]PhotonicsLattice (order)Bessel beamsymbolsComunicacions òptiquesSoliton:Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica [Àrees temàtiques de la UPC]Optical vortexBessel functionDiscrete symmetry
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Controlling Atom-Photon Bound States in an Array of Josephson-Junction Resonators

2022

Engineering the electromagnetic environment of a quantum emitter gives rise to a plethora of exotic light -matter interactions. In particular, photonic lattices can seed long-lived atom-photon bound states inside photonic band gaps. Here, we report on the concept and implementation of a novel microwave architecture consisting of an array of compact superconducting resonators in which we have embedded two frequency -tunable artificial atoms. We study the atom-field interaction and access previously unexplored coupling regimes, in both the single-and double-excitation subspace. In addition, we demonstrate coherent interactions between two atom-photon bound states, in both resonant and dispers…

quantumPhotonics:Física [Àrees temàtiques de la UPC]latticesFotònicaedgeGeneral Physics and Astronomylight-matter interactionsCircuit QED. Waveguide QED. Quantum information processing implementationsSettore FIS/03 - Fisica Della Materia
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