弦场论中的 $\mathrm{AdS}_3\times \mathrm{S}^3$ 强耦合谱
Strong coupling spectrum of $\mathrm{AdS}_3\times \mathrm{S}^3$ from string field theory
AI总结:
本文提出结合弦场论与混合通量假设的方法,计算大半径AdS3×S3弦论的对偶CFT标度维度,并在纯RR极限下验证了与世界sheet自举和可积性结果的一致性。
AI中文摘要:
我们考虑在相对RR通量和NS-NS通量取任意值时,大AdS半径展开下的IIB型弦论在$\mathrm{AdS}_3\times \mathrm{S}^3\times \mathbb{T}^4$上的行为。我们发展了一种在该极限下计算对偶CFT中标度维度的方法,该方法结合了弦场论计算(在有限量子化NS-NS通量下有效,但对RR通量作微扰处理)与一个有限混合通量假设,后者受世界sheet宇称约束,并由经典弦解所启发。我们将该方法应用于三族态。在纯RR极限下,我们的结果既与世界sheet自举计算得到的一族态一致,也与用可积性计算的另一族态相符。
英文摘要:
We consider type IIB string theory on $\mathrm{AdS}_3\times \mathrm{S}^3\times \mathbb{T}^4$ in a large AdS radius expansion at arbitrary values of the relative RR and NS-NS fluxes. We develop a method for computing scaling dimensions in the dual CFT in this limit by combining a string field theory calculation, valid at finite quantized NS-NS flux but perturbative in RR flux, with a finite mixed-flux ansatz, which is constrained by worldsheet parity and motivated by classical string solutions. We apply the method to three families of states. In the pure-RR limit, our results agree both with a family of states computed using the worldsheet bootstrap and with another family computed using integrability.