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Polarization correlations of $e^{+}e^{-}$ pair productions from charged andneutral Nambu strings are investigated, via photon and graviton emissions,respectively and explicit expressions for their corresponding probabilities arederived and found to be \textit{speed} dependent. The strings are taken to becircularly oscillating closed strings, as perhaps the simplest solution of theNambu action. In the extreme relativistic case, these probabilities coincide,but, in general, are different, and such inquiries, in principle, indicatewhether the string is charged or uncharged. It is remarkable that thesedynamical relativistic quantum field theory calculations lead to a clearviolation of Local Hidden Variables theories.Comment: 6 pages, no figure, LaTeX with ws-mpla.cl

POLARIZATION CORRELATIONS IN PAIR PRODUCTION FROM CHARGED AND NEUTRAL STRINGS