The Zero Tension Limit of The Virasoro Algebra and the Central Extension
classification
✦ hep-th
keywords
algebralimitstringvirasorocentralextensionformtension
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We argue that the Virasoro algebra for the closed bosonic string can be cast in a form which is suitable for the limit of vanishing string tension. In this form the limit of the Virasoro algebra gives the null string algebra. The anomalous central extension is seen to vanish as well when $T\to 0$.
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Cited by 1 Pith paper
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On the Consistency of Null Strings Literature: The Tale of an Overlooked Symmetry
Null strings possess an overlooked local symmetry that reduces their physical degrees of freedom to D-3 rather than the D-2 reported in prior literature.
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