Flores-Hidalgo, G.Milla, Y. W.2014-05-202014-05-202005-08-26Journal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 38, n. 34, p. 7527-7541, 2005.0305-4470http://hdl.handle.net/11449/23710In previous publications, the concepts of dressed coordinates and dressed states have been introduced in the context of a harmonic oscillator linearly coupled to an infinity set of other harmonic oscillators. In this paper, we show how to generalize such dressed coordinates and. states to a nonlinear version of the mentioned system. Also, we clarify some misunderstandings about the concept of dressed coordinates. Indeed, now we: prefer to call them renormalized coordinates to emphasize the analogy with the renormalized fields in quantum field theory.7527-7541engArtigo10.1088/0305-4470/38/34/007WOS:000231933500010Acesso restrito