On non-abelian T-duality and deformations of supercoset string
sigma-models

J 2017

On non-abelian T-duality and deformations of supercoset string sigma-models

BORSATO, Riccardo a Linus WULFF

Základní údaje

Originální název

On non-abelian T-duality and deformations of supercoset string sigma-models

Autoři

BORSATO, Riccardo (380 Itálie) a Linus WULFF (752 Švédsko, garant, domácí)

Vydání

Journal of High Energy Physics, New York, SPRINGER, 2017, 1029-8479

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10303 Particles and field physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 5.541

Kód RIV

RIV/00216224:14310/17:00100357

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1007/JHEP10(2017)024

UT WoS

000412351500004

Klíčová slova anglicky

Integrable Field Theories; String Duality

Štítky

NZ, rivok

Změněno: 9. 4. 2018 23:07, Ing. Nicole Zrilić

Anotace

V originále

We elaborate on the class of deformed T-dual (DTD) models obtained by first adding a topological term to the action of a supercoset sigma model and then performing (non-abelian) T-duality on a subalgebra (g) over tilde of the superisometry algebra. These models inherit the classical integrability of the parent one, and they include as special cases the socalled homogeneous Yang-Baxter sigma models as well as their non-abelian T-duals. Many properties of DTD models have simple algebraic interpretations. For example we show that their (non-abelian) T-duals - including certain deformations - are again in the same class, where (g) over tilde gets enlarged or shrinks by adding or removing generators corresponding to the dualised isometries. Moreover, we show that Weyl invariance of these models is equivalent to (g) over tilde being unimodular; when this property is not satisfied one can always remove one generator to obtain a unimodular (g) over tilde, which is equivalent to (formal) T-duality. We also work out the target space super fields and, as a by-product, we prove the conjectured transformation law for Ramond-Ramond (RR) fields under bosonic non-abelian T-duality of supercosets, generalising it to cases involving also fermionic T-dualities.

Citovat

BORSATO, Riccardo a Linus WULFF. On non-abelian T-duality and deformations of supercoset string sigma-models. Journal of High Energy Physics. New York: SPRINGER, 2017, Neuveden, č. 10, s. nestrankovano, 30 s. ISSN 1029-8479. Dostupné z: https://dx.doi.org/10.1007/JHEP10(2017)024.

@article{1411124,
   author = {Borsato, Riccardo and Wulff, Linus},
   article_location = {New York},
   article_number = {10},
   doi = {http://dx.doi.org/10.1007/JHEP10(2017)024},
   keywords = {Integrable Field Theories; String Duality},
   language = {eng},
   issn = {1029-8479},
   journal = {Journal of High Energy Physics},
   title = {On non-abelian T-duality and deformations of supercoset string sigma-models},
   volume = {Neuveden},
   year = {2017}
}

TY  - JOUR
ID  - 1411124
AU  - Borsato, Riccardo - Wulff, Linus
PY  - 2017
TI  - On non-abelian T-duality and deformations of supercoset string sigma-models
JF  - Journal of High Energy Physics
VL  - Neuveden
IS  - 10
SP  - nestrankovano
EP  - nestrankovano
PB  - SPRINGER
SN  - 10298479
KW  - Integrable Field Theories
KW  - String Duality
N2  - We elaborate on the class of deformed T-dual (DTD) models obtained by first adding a topological term to the action of a supercoset sigma model and then performing (non-abelian) T-duality on a subalgebra (g) over tilde of the superisometry algebra. These models inherit the classical integrability of the parent one, and they include as special cases the socalled homogeneous Yang-Baxter sigma models as well as their non-abelian T-duals. Many properties of DTD models have simple algebraic interpretations. For example we show that their (non-abelian) T-duals - including certain deformations - are again in the same class, where (g) over tilde gets enlarged or shrinks by adding or removing generators corresponding to the dualised isometries. Moreover, we show that Weyl invariance of these models is equivalent to (g) over tilde being unimodular; when this property is not satisfied one can always remove one generator to obtain a unimodular (g) over tilde, which is equivalent to (formal) T-duality. We also work out the target space super fields and, as a by-product, we prove the conjectured transformation law for Ramond-Ramond (RR) fields under bosonic non-abelian T-duality of supercosets, generalising it to cases involving also fermionic T-dualities.
ER  -

BORSATO, Riccardo a Linus WULFF. On non-abelian T-duality and deformations of supercoset string sigma-models. \textit{Journal of High Energy Physics}. New York: SPRINGER, 2017, Neuveden, č.~10, s.~nestrankovano, 30 s. ISSN~1029-8479. Dostupné z: https://dx.doi.org/10.1007/JHEP10(2017)024.

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