Imperial College London
Alternate

ProfessorArkadyTseytlin

Faculty of Natural Sciences, Department of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 1890a.tseytlin Website

 
 
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Location

 

685Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Arutyunov:2016:10.1016/j.nuclphysb.2015.12.012,
author = {Arutyunov, G and Frolov, S and Hoare, B and Roiban, R and Tseytlin, AA},
doi = {10.1016/j.nuclphysb.2015.12.012},
journal = {Nuclear Physics B},
pages = {262--303},
title = {Scale invariance of the eta-deformed AdS(5) x S-5 superstring, T-duality and modified type II equations},
url = {http://dx.doi.org/10.1016/j.nuclphysb.2015.12.012},
volume = {903},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We consider the ABF background underlying the η-deformed  sigma model. This background fails to satisfy the standard IIB supergravity equations which indicates that the corresponding sigma model is not Weyl invariant, i.e. does not define a critical string theory in the usual sense. We argue that the ABF background should still define a UV finite theory on a flat 2d world-sheet implying that the η-deformed model is scale invariant. This property follows from the formal relation via T-duality between the η-deformed model and the one defined by an exact type IIB supergravity solution that has 6 isometries albeit broken by a linear dilaton. We find that the ABF background satisfies candidate type IIB scale invariance conditions which for the R–R field strengths are of the second order in derivatives. Surprisingly, we also find that the ABF background obeys an interesting modification of the standard IIB supergravity equations that are first order in derivatives of R–R fields. These modified equations explicitly depend on Killing vectors of the ABF background and, although not universal, they imply the universal scale invariance conditions. Moreover, we show that it is precisely the non-isometric dilaton of the T-dual solution that leads, after T-duality, to modification of type II equations from their standard form. We conjecture that the modified equations should follow from κ-symmetry of the η-deformed model. All our observations apply also to η-deformations of and models.
AU  - Arutyunov,G
AU  - Frolov,S
AU  - Hoare,B
AU  - Roiban,R
AU  - Tseytlin,AA
DO  - 10.1016/j.nuclphysb.2015.12.012
EP  - 303
PY  - 2016///
SN  - 0550-3213
SP  - 262
TI  - Scale invariance of the eta-deformed AdS(5) x S-5 superstring, T-duality and modified type II equations
T2  - Nuclear Physics B
UR  - http://dx.doi.org/10.1016/j.nuclphysb.2015.12.012
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000370089500014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S0550321315004320?via%3Dihub
UR  - http://hdl.handle.net/10044/1/52787
VL  - 903
ER  -
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