Outputs (5)

A Lagrangian for self-dual strings (2015)
Journal Article
Niarchos, V. (2015). A Lagrangian for self-dual strings. Journal of High Energy Physics, 2015(12), Article 060. https://doi.org/10.1007/jhep12%282015%29060

We propose a Lagrangian for the low-energy theory that resides at the (1 + 1)-dimensional intersection of N semi-infinite M2-branes ending orthogonally on M M5-branes in R1,2×C4/ZkR1,2×C4/Zk (for arbitrary positive integers N, M, k). We formulate thi... Read More about A Lagrangian for self-dual strings.

On exact correlation functions in SU(N) N=2 superconformal QCD (2015)
Journal Article
Baggio, M., Niarchos, V., & Papadodimas, K. (2015). On exact correlation functions in SU(N) N=2 superconformal QCD. Journal of High Energy Physics, 2015(11), Article 198. https://doi.org/10.1007/jhep11%282015%29198

We consider the exact coupling constant dependence of extremal correlation functions of N=2N=2 chiral primary operators in 4d N=2N=2 superconformal gauge theories with gauge group SU(N) and Nf = 2N massless fundamental hypermultiplets. The 2- and 3-p... Read More about On exact correlation functions in SU(N) N=2 superconformal QCD.

Defects in Chern-Simons theory, gauged WZW models on the brane, and level-rank duality (2015)
Journal Article
Armoni, A., & Niarchos, V. (2015). Defects in Chern-Simons theory, gauged WZW models on the brane, and level-rank duality. Journal of High Energy Physics, 2015(7), Article 062. https://doi.org/10.1007/jhep07%282015%29062

We consider Hanany-Witten setups of 3- and 5-branes in type IIB string theory that realize N=(1,0)N=(1,0) , (2, 0) and (1, 1) gauged WZW models in 1 + 1 dimensions. The gauged WZW models arise as theories residing on the boundary of D3 branes ending... Read More about Defects in Chern-Simons theory, gauged WZW models on the brane, and level-rank duality.

tt∗ equations, localization and exact chiral rings in 4d N = 2 SCFTs (2015)
Journal Article
Baggio, M., Niarchos, V., & Papadodimas, K. (2015). tt∗ equations, localization and exact chiral rings in 4d N = 2 SCFTs. Journal of High Energy Physics, 2015(2), Article 122. https://doi.org/10.1007/jhep02%282015%29122

We compute exact 2- and 3-point functions of chiral primaries in four-dimensional NN = 2 superconformal field theories, including all perturbative and instanton contributions. We demonstrate that these correlation functions are nontrivial and satisfy... Read More about tt∗ equations, localization and exact chiral rings in 4d N = 2 SCFTs.

Large-N transitions of the connectivity index (2015)
Journal Article
Aprile, F., & Niarchos, V. (2015). Large-N transitions of the connectivity index. Journal of High Energy Physics, 2015(2), Article 083. https://doi.org/10.1007/jhep02%282015%29083

The connectivity index, defined as the number of decoupled components of a separable quantum system, can change under deformations of the Hamiltonian or during the dynamical change of the system under renormalization group flow. Such changes signal a... Read More about Large-N transitions of the connectivity index.