Twisted Tachyon Condensation in Closed String Field Theory | Zendy

Yuji Okawa | Zendy; Barton Zwiebach | Zendy

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Twisted Tachyon Condensation in Closed String Field Theory

Author(s) -

Yuji Okawa,

Barton Zwiebach

Publication year - 2004

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 - 10.1088/1126-6708/2004/03/056

Subject(s) - tachyon , tachyon condensation , physics , string (physics) , string field theory , tachyonic field , conjecture , non critical string theory , field (mathematics) , string theory , space (punctuation) , bosonic string theory , mathematical physics , theoretical physics , relationship between string theory and quantum field theory , quantum mechanics , mathematics , pure mathematics , quantum gravity , gauge theory , gauge boson , quantum , higgs mechanism , linguistics , philosophy

We consider twisted tachyons on C/Z_N orbifolds of bosonic closed stringtheory. It has been conjectured that these tachyonic instabilities correspondto decays of the orbifolds into flat space or into orbifolds with smallerdeficit angles. We examine this conjecture using closed string field theory,with the string field truncated to low-level tachyons. We compute the tachyonpotentials for C/Z_2 and C/Z_3 orbifolds and find critical points at depthsthat generate about 70% of the expected change in the deficit angle. We findthat both twisted fields and untwisted modes localized near the apex of thecone acquire vacuum expectation values and contribute to the potential.Comment: 36 pages, 5 figures, LaTeX2e; v2: one reference added and minor cosmetic change

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