On the tensionless limit of bosonic strings, infinite symmetries and higher spins
Copyright policy )On the tensionless limit of bosonic strings, infinite symmetries and higher spins
In the tensionless limit of string theory on flat background all the massive tower of states gets squeezed to a common zero mass level and the free theory is described by an infinite amount of massless free fields with arbitrary integer high spin. We notice that in this situation the very notion of critical dimension gets lost, the apparency of infinite global symmetries takes place, and the closed tensionless string can be realized as a constrained subsystem of the open one in a natural way. Moreover, we study the tensionless limit of the Witten's cubic sting field theory and find that the theory in such a limit can be represented as an infinite set of free arbitrary higher spin excitations plus an interacting sector involving their zero-modes only.
1+17 pages. Typos corrected and references added
High Energy Physics - Theory, High Energy Physics - Theory (hep-th), constrained opern-string subsystem, FOS: Physical sciences, String and superstring theories; other extended objects (e.g., branes) in quantum field theory, massive state tower, Physique atomique et nucléaire, Witten cubic string field theory
High Energy Physics - Theory, High Energy Physics - Theory (hep-th), constrained opern-string subsystem, FOS: Physical sciences, String and superstring theories; other extended objects (e.g., branes) in quantum field theory, massive state tower, Physique atomique et nucléaire, Witten cubic string field theory
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