no code implementations • 23 Feb 2021 • Simone Giombi, Elizabeth Helfenberger, Ziming Ji, Himanshu Khanchandani
We first study the general monodromy defect in the free field theory, and then develop the large $N$ expansion of the defect in the interacting theory, focusing for simplicity on the case of $N$ complex fields with a one-parameter monodromy condition.
High Energy Physics - Theory Strongly Correlated Electrons
no code implementations • 23 Nov 2020 • Simone Giombi, Jonah Hyman
Using the standard Hubbard-Stratonovich description of the critical $O(N)$ model at large $N$, we solve the relevant saddle point equation and determine the scaling dimensions as a function of $d$ and $\hat{j}$, finding agreement with all existing results in various limits.
High Energy Physics - Theory High Energy Physics - Phenomenology
no code implementations • 16 Jul 2015 • Shai M. Chester, Simone Giombi, Luca V. Iliesiu, Igor R. Klebanov, Silviu S. Pufu, Ran Yacoby
By combining the tools of the conformal bootstrap with results obtained through supersymmetric localization, we argue that this model exhibits a symmetry enhancement at the infrared superconformal fixed point due to $g_2$ flowing to zero.
High Energy Physics - Theory
