Yang-Baxter deformations of the $$GL(2,{\mathbb {R}})$$ G L ( 2 , R ) WZW model and non-Abelian T-duality

Ali Eghbali (Department of Physics, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran) ; Tayebe Parvizi (Department of Physics, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran) ; Adel Rezaei-Aghdam (Department of Physics, Faculty of Basic Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran)

By calculating inequivalent classical r-matrices for the $$gl(2,{\mathbb {R}})$$ g l ( 2 , R ) Lie algebra as solutions of (modified) classical Yang-Baxter equation ((m)CYBE), we classify the YB deformations of Wess-Zumino-Witten (WZW) model on the $$GL(2,{\mathbb {R}})$$ G L ( 2 , R ) Lie group in twelve inequivalent families. Most importantly, it is shown that each of these models can be obtained from a Poisson-Lie T-dual $$\sigma $$ σ -model in the presence of the spectator fields when the dual Lie group is considered to be Abelian, i.e. all deformed models have Poisson-Lie symmetry just as undeformed WZW model on the $$GL(2,{\mathbb {R}})$$ G L ( 2 , R ) . In this way, all deformed models are specified via spectator-dependent background matrices. For one case, the dual background is clearly found.

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      "title": "Yang-Baxter deformations of the  $$GL(2,{\\mathbb {R}})$$  <math> <mrow> <mi>G</mi> <mi>L</mi> <mo>(</mo> <mn>2</mn> <mo>,</mo> <mi>R</mi> <mo>)</mo> </mrow> </math>   WZW model and non-Abelian T-duality"
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      "source": "Springer", 
      "value": "By calculating inequivalent classical r-matrices for the  $$gl(2,{\\mathbb {R}})$$  <math> <mrow> <mi>g</mi> <mi>l</mi> <mo>(</mo> <mn>2</mn> <mo>,</mo> <mi>R</mi> <mo>)</mo> </mrow> </math>   Lie algebra as solutions of (modified) classical Yang-Baxter equation ((m)CYBE), we classify the YB deformations of Wess-Zumino-Witten (WZW) model on the  $$GL(2,{\\mathbb {R}})$$  <math> <mrow> <mi>G</mi> <mi>L</mi> <mo>(</mo> <mn>2</mn> <mo>,</mo> <mi>R</mi> <mo>)</mo> </mrow> </math>   Lie group in twelve inequivalent families. Most importantly, it is shown that each of these models can be obtained from a Poisson-Lie T-dual  $$\\sigma $$  <math> <mi>\u03c3</mi> </math>  -model in the presence of the spectator fields when the dual Lie group is considered to be Abelian, i.e. all deformed models have Poisson-Lie symmetry just as undeformed WZW model on the  $$GL(2,{\\mathbb {R}})$$  <math> <mrow> <mi>G</mi> <mi>L</mi> <mo>(</mo> <mn>2</mn> <mo>,</mo> <mi>R</mi> <mo>)</mo> </mrow> </math>  . In this way, all deformed models are specified via spectator-dependent background matrices. For one case, the dual background is clearly found."
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Published on:
11 October 2023
Publisher:
Springer
Published in:
European Physical Journal C , Volume 83 (2023)
Issue 10
Pages 1-12
DOI:
https://doi.org/10.1140/epjc/s10052-023-12084-8
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

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