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{Hoare:2015:10.1016/j.nuclphysb.2015.06.001,
author = {Hoare, B and Tseytlin, AA},
doi = {10.1016/j.nuclphysb.2015.06.001},
journal = {Nuclear Physics B},
pages = {448--478},
title = {On integrable deformations of superstring sigma models related to AdSn×Sn supercosets},
url = {http://dx.doi.org/10.1016/j.nuclphysb.2015.06.001},
volume = {897},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We consider two integrable deformations of 2d sigma models on supercosets associated with AdSn×Sn. The first, the “η  -deformation” (based on the Yang–Baxter sigma model), is a one-parameter generalization of the standard superstring action on AdSn×Sn, while the second, the “λ  -deformation” (based on the deformed gauged WZW model), is a generalization of the non-abelian T-dual of the AdSn×Sn superstring. We show that the η-deformed model may be obtained from the λ  -deformed one by a special scaling limit and analytic continuation in coordinates combined with a particular identification of the parameters of the two models. The relation between the couplings and deformation parameters is consistent with the interpretation of the first model as a real quantum deformation and the second as a root of unity quantum deformation. For the AdS2×S2 case we then explore the effect of this limit on the supergravity background associated with the λ  -deformed model. We also suggest that the two models may form a dual Poisson–Lie pair and provide direct evidence for this in the case of the integrable deformations of the coset associated with S2.
AU  - Hoare,B
AU  - Tseytlin,AA
DO  - 10.1016/j.nuclphysb.2015.06.001
EP  - 478
PY  - 2015///
SN  - 0550-3213
SP  - 448
TI  - On integrable deformations of superstring sigma models related to AdSn×Sn supercosets
T2  - Nuclear Physics B
UR  - http://dx.doi.org/10.1016/j.nuclphysb.2015.06.001
UR  - http://hdl.handle.net/10044/1/34194
VL  - 897
ER  -
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