Georgiou, George; Konstantinos, Sfetsos; Siampos, Konstadinos (2017). Double and cyclic λ-deformations and their canonical equivalents. Physics letters. B, 771, pp. 576-582. Elsevier 10.1016/j.physletb.2017.06.007
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We prove that the doubly λ-deformed σ-models, which include integrable cases, are canonically equivalent to the sum of two single λ-deformed models. This explains the equality of the exact β-functions and current anomalous dimensions of the doubly λ-deformed σ-models to those of two single λ-deformed models. Our proof is based upon agreement of their Hamiltonian densities and of their canonical structure. Subsequently, we show that it is possible to take a well defined non-Abelian type limit of the doubly-deformed action. Last, but not least, by extending the above, we construct multi-matrix integrable deformations of an arbitrary number of WZW models.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Konstantinos, Sfetsos, Siampos, Konstadinos |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0370-2693 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
03 Nov 2017 09:03 |
Last Modified: |
05 Dec 2022 15:06 |
Publisher DOI: |
10.1016/j.physletb.2017.06.007 |
ArXiv ID: |
1704.07834 |
BORIS DOI: |
10.7892/boris.102339 |
URI: |
https://boris.unibe.ch/id/eprint/102339 |
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