205 citations · 3k across the 122 of their papers we have counts for
15 papers · 1 filter
Truncated Conformal Space Approach for Perturbed Wess-Zumino-Witten Models
M. Beria, G. P. Brandino, L. Lepori +2
We outline the application of the truncated conformal space approach (TCSA) to perturbations of Wess-Zumino-Witten theories. As examples of this methodology, we consider…
An model on spacetime
Javier Molina-Vilaplana, Germán Sierra
In this paper we formulate the model on the AdS spacetime. We find that the spectrum of the Hamiltonian has positive and negative eigenvalues, whose absolute values are gi…
Finite size effects in ferromagnetic spin chains and quantum corrections to classical strings
Rafael Hernandez, Esperanza Lopez, Africa Perianez +1
N=4 supersymmetric Yang-Mills operators carrying large charges are dual to semiclassical strings in AdS_5xS^5. The spectrum of anomalous dimensions of very large operators has been…
Renormalization group limit-cycles and field theories for elliptic S-matrices
Andre LeClair, German Sierra
The renormalization group for maximally anisotropic su(2) current interactions in 2d is shown to be cyclic at one loop. The fermionized version of the model exhibits spin-charge se…
Log-periodic behavior of finite size effects in field theories with RG limit cycles
A. LeClair, J. M. Roman, G. Sierra
We compute the finite size effects in the ground state energy, equivalently the effective central charge c_{eff}, based on S-matrix theories recently conjectured to describe a cycl…
Russian Doll Renormalization Group, Kosterlitz-Thouless Flows, and the Cyclic sine-Gordon model
A. Leclair, J. M. Roman, G. Sierra
We investigate the previously proposed cyclic regime of the Kosterlitz-Thouless renormalization group (RG) flows. The period of one cycle is computed in terms of the RG invariant.…