Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Seibold, Fiona K"'
Motivated by the recent advances in the understanding of integrability for $AdS_3$ backgrounds, we present a lightning review of this approach, with particular attention to the "tensionless" limits (with zero and one unit of NSNS flux), and to the ma
Externí odkaz:
http://arxiv.org/abs/2408.08414
Autor:
Seibold, Fiona K., Tseytlin, Arkady A.
We compute the one-loop $2 \rightarrow 2$ scattering amplitude of massless scalars on the world volume of an infinite $D = 11$ supermembrane quantized in the static gauge. The resulting expression is manifestly finite and turns out to be much simpler
Externí odkaz:
http://arxiv.org/abs/2404.09658
Light-cone gauge-fixed sigma-models on $AdS_n\times S^n$ backgrounds play an important role in the integrability formulation of the AdS/CFT correspondence. The string spectrum of the sigma-model is gauge-independent, however the Hamiltonian and scatt
Externí odkaz:
http://arxiv.org/abs/2312.17056
With the aim of investigating the existence of an integrable elliptic deformation of strings on $\mathsf{AdS}_3 \times \mathsf{S}^3 \times \mathsf{T}^4$, we compute the tree-level worldsheet S-matrix of the elliptically-deformed bosonic sigma model o
Externí odkaz:
http://arxiv.org/abs/2312.14031
Autor:
Demulder, Saskia, Driezen, Sibylle, Knighton, Bob, Oling, Gerben, Retore, Ana L., Seibold, Fiona K., Sfondrini, Alessandro, Yan, Ziqi
We review different exact approaches to string theory. In the context of the Green-Schwarz superstring, we discuss the action in curved backgrounds and its supercoset formulation, with particular attention to superstring backgrounds of the $AdS_3$ ty
Externí odkaz:
http://arxiv.org/abs/2312.12930
Autor:
Seibold, Fiona K., Tseytlin, Arkady A.
Expanding Nambu-Goto action near infinitely long string vacuum one can compute scattering amplitudes of 2d massless fields representing transverse string coordinates. As was shown in arXiv:1203.1054, the resulting S-matrix is integrable, in agreement
Externí odkaz:
http://arxiv.org/abs/2308.12189
Integrable string sigma models on AdS$_3$ backgrounds with 16 supersymmetries have the distinguishing feature that their superisometry group is a direct product. As a result the deformation theory of these models is particularly rich since the two su
Externí odkaz:
http://arxiv.org/abs/2212.08625
We construct a family of type IIB string backgrounds that are deformations of $\rm AdS_3 \times S^3 \times T^4$ with a "squashed" $\rm AdS_3 \times S^3$ metric supported by a combination of NSNS and RR fluxes. They have global $\rm SU(1,1) \times SU(
Externí odkaz:
http://arxiv.org/abs/2206.12347
We work out the algebraic Bethe ansatz for the worldsheet theory of the $AdS_3\times S^3\times T^4$ superstring, and use it to derive the transfer matrices for fundamental particles and bound states of the string and mirror model. We also show how th
Externí odkaz:
http://arxiv.org/abs/2202.11058
Two distinct $\eta$-deformations of strings on AdS$_5\times$S$^5$ can be defined; both amount to integrable quantum deformations of the string non-linear sigma model, but only one is itself a superstring background. In this paper we compare their con
Externí odkaz:
http://arxiv.org/abs/2109.08510