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Autori: Borchin O. and Papp E.
Editorial: http://www.physics.uvt.ro/anale_uvt_fizica/, Analele Universităţii de Vest din Timişoara, Vol. L II, p.106-115, 2008.
Coupled chains in longitudinal electric and transversal magnetic ﬁelds are able to be formulated as a conditionally solvable problem. This opens the way to the onset of Wannier-Stark resonances, such as discussed before [E. Papp et al, Physica B. 403, (2008) 3289]. However, such resonances proceed under well deﬁned relationships concerning the energy quantum number, the inter- and intra- chain hopping, as well as the magnitudes of the external ﬁelds referred to above. In addition we have to account for the inﬂuence of the Brillouin zone. Here one deals with a systematical numerical study of implicit plots characterizing such relationships, thereby providing a deeper understanding of related phenomena.
Cuvinte cheie: Coupled chains, Wannier-Stark resonances, Crossed fields.