TY - JOUR
T1 - Multitrace deformations of vector and adjoint theories and their holographic duals
AU - Elitzur, Shmuel
AU - Giveon, Amit
AU - Porrati, Massimo
AU - Rabinovici, Eliezer
PY - 2006/2/1
Y1 - 2006/2/1
N2 - We present general methods to study the effect of multitrace deformations in conformal theories admitting holographic duals in Anti de Sitter space. In particular, we analyse the case that these deformations introduce an instability both in the bulk AdS space and in the boundary CFT. We also argue that multitrace deformations of the O(N) linear sigma model in three dimensions correspond to nontrivial time-dependent backgrounds in certain theories of infinitely many interacting massless fields on AdS4, proposed years ago by Fradkin and Vasiliev. We point out that the phase diagram of a truly marginal large-N deformation has an infrared limit in which only an O(N) singlet field survives. We draw from this case lessons on the full string-theoretical interpretation of instabilities of the dual boundary theory and exhibit a toy model that resolves the instability of the O(N) model, generated by a marginal multitrace deformation. The resolution suggests that the instability may not survive in an appropriate UV completion of the CFT.
AB - We present general methods to study the effect of multitrace deformations in conformal theories admitting holographic duals in Anti de Sitter space. In particular, we analyse the case that these deformations introduce an instability both in the bulk AdS space and in the boundary CFT. We also argue that multitrace deformations of the O(N) linear sigma model in three dimensions correspond to nontrivial time-dependent backgrounds in certain theories of infinitely many interacting massless fields on AdS4, proposed years ago by Fradkin and Vasiliev. We point out that the phase diagram of a truly marginal large-N deformation has an infrared limit in which only an O(N) singlet field survives. We draw from this case lessons on the full string-theoretical interpretation of instabilities of the dual boundary theory and exhibit a toy model that resolves the instability of the O(N) model, generated by a marginal multitrace deformation. The resolution suggests that the instability may not survive in an appropriate UV completion of the CFT.
KW - AdS-CFT Correspondence
UR - http://www.scopus.com/inward/record.url?scp=33644781591&partnerID=8YFLogxK
U2 - 10.1088/1126-6708/2006/02/006
DO - 10.1088/1126-6708/2006/02/006
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AN - SCOPUS:33644781591
SN - 1029-8479
SP - 6
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 2
ER -