A Note on Tachyon Moduli and Closed Strings

Details A Note on Tachyon Moduli and Closed Strings A Note on Tachyon Moduli and Closed Strings

2008-03-20

arxiv.org/abs/0803.2980v2

Phys.Rev.D78:024028,2008

Physics

High Energy Physics

High Energy Physics - Theory

PDFLaTeX, 17 pages, 2 figures; Section 2 rewritten, several fixes throughout the text to improve clarity

Scientific paper

10.1103/PhysRevD.78.024028

The collective behavior of the SL(2,R) covariant brane states of non-critical c=1 string theory found in a previous work, is studied in the Fermi liquid approximation. It is found that such states mimick the coset WZW model, whereas only by further restrictions one recovers the double-scaling limit which was purported to be equivalent to closed string models. Another limit is proposed, inspired by the tachyon condensation ideas, where the spectrum is the same of two-dimensional string theory. We close by noting some strange connections between vacuum states of the theory in their different interpretations.

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