Abstract
Elementary excitations of the 4k F charge density wave state of a quarter-filled strongly correlated electronic one-dimensional chain are investigated in the presence of dispersionless quantum optical phonons using Density Matrix Renormalization Group techniques. Such excitations are shown to be topological solitons carrying charge e/2 and spin zero. Relevance to the 4k F charge density wave instability in (DI - DCNQI)2 A g or recently discovered in (TMTTF)2X ( X=PF 6, AsF6) is discussed.
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