%0 Journal Article %T On the linearity of the Schr£żdinger equation %A Bialynicki-Birula %A Iwo %J Brazilian Journal of Physics %D 2005 %I Scientific Electronic Library Online %R 10.1590/S0103-97332005000200003 %X the problem of the linearity of the schr£żdinger equation is described from a historical perspective. it is argued that the schr£żdinger picture on which this equation is based cannot be retained in relativistic quantum theory. a closer analysis of realistic experiments might offer a clue how to modify the evolution equation for the state vectors in quantum field theory. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-97332005000200003&lng=en&nrm=iso&tlng=en