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Some Comments On String Dynamics

Edward Witten
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Abstract

Three subjects are considered here: a self-dual non-critical string that appears in Type IIB superstring theory at points in ${\rm K3}$ moduli space where the Type IIA theory has extended gauge symmetry; a conformal field theory singularity at such points which may signal quantum effects that persist even at weak coupling; and the rich dynamics of the real world under compactification, which may be relevant to some attempts to explain the vanishing of the cosmological constant.

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Edward Witten. 1995-07-23. Some Comments On String Dynamics. https://arxiv.org/abs/hep-th/9507121

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