Creffield, CharlesPlatero, G.2023-06-202023-06-2020033-540-40785-50075-845010.1007/978-3-540-45202-7_12https://hdl.handle.net/20.500.14352/60954ISSN: 0075-8450 International WE Heraeus Seminar on Localization, Quantum Coherence and Interactions (283rd. 2002. Hamburg, Germany). This work was supported by the Spanish DGES grant MAT2002-02465, by the European Union TMR contract FMRX-CT98-0180 and by the European Community’s Human Potential Programme under contract HPRN-CT-2000-00144, Nanoscale Dynamics.A quantum dot (QD) is a structure in which electrons can be confined to small length scales, comparable to their Fermi wavelength. A set of electrons held in such a structure is conceptually similar to a set of atomic electrons bound to a nucleus, and for this reason quantum dots are sometimes termed “artificial atoms” [1]. Unlike real atoms, the physical properties of quantum dots can be easily varied, which gives theorists and experimentalists the opportunity to study novel quantum effects in a well-controlled system.engbook parthttp://dx.doi.org/10.1007/978-3-540-45202-7_12http://link.springer.comopen access538.9Interacting electronsCoherent destructionPersistent currentArtificial atomsRadiationMoleculeStateFieldSpinFísica de materialesFísica del estado sólido2211 Física del Estado Sólido