Cosmological unification of string theories | Zendy

Simeon Hellerman | Zendy; Ian Swanson | Zendy

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Cosmological unification of string theories

Author(s) -

Simeon Hellerman,

Ian Swanson

Publication year - 2008

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2008/07/022

Subject(s) - superstring theory , worldsheet , non critical string theory , physics , string field theory , tachyon , type i string theory , tachyon condensation , bosonic string theory , string phenomenology , string (physics) , relationship between string theory and quantum field theory , theoretical physics , green–schwarz mechanism , heterotic string theory , conformal field theory , string theory , string cosmology , tachyonic field , compactification (mathematics) , mathematical physics , conformal map , supersymmetry , quantum mechanics , mathematics , pure mathematics , quantum gravity , geometry , gauge theory , quantum , gauge boson , higgs mechanism

We present an exact solution of superstring theory that interpolates in timebetween an initial type 0 phase and a final phase whose physics is exactly thatof the bosonic string. The initial theory is deformed by closed-string tachyoncondensation along a lightlike direction. In the limit of large tachyon vev,the worldsheet conformal field theory precisely realizes the Berkovits-Vafaembedding of bosonic string theory into superstring theory. Our solutiontherefore connects the bosonic string dynamically with the superstring,settling a longstanding question about the relationship between the twotheories.Comment: v2: references added, typos fixed; v3: new sections added; 62 pages, 5 figure

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