Zobrazeno 1 - 10
of 43
pro vyhledávání: '"SIANI, MASSIMO"'
We develop a method to identify the BPS states in the Hilbert space of a supersymmetric field theory on a generic curved space which preserves at least two real supercharges. We also propose a one-to-one map between BPS states in d-dimensional field
Externí odkaz:
http://arxiv.org/abs/1211.2808
We discuss and provide nontrivial evidence for a large class of dualities in three-dimensional field theories with different gauge groups. We match the full partition functions of the dual phases for any value of the couplings to underpin our proposa
Externí odkaz:
http://arxiv.org/abs/1205.6798
We compute the large N limit of the localized three dimensional free energy of various field theories with known proposed AdS duals. We show that vector-like theories agree with the expected supergravity results, and with the conjectured F-theorem. W
Externí odkaz:
http://arxiv.org/abs/1111.1723
Autor:
Amariti, Antonio, Siani, Massimo
We study the localized free energy on S^3 of three-dimensional N=2 Chern-Simons matter theories at weak coupling. We compute the two loop R charge in three different ways, namely by the standard perturbative approach, by extremizing the localized par
Externí odkaz:
http://arxiv.org/abs/1109.4152
We discuss exotic properties of charged hydrodynamical systems, in the broken superconducting phase, probed by electromagnetic waves. Motivated by general arguments from hydrodynamics, we observe that negative refraction, namely the propagation in op
Externí odkaz:
http://arxiv.org/abs/1107.1242
Autor:
Amariti, Antonio, Siani, Massimo
We propose an extension of the F-maximization principle to take into account the effects of non-superconformality. Guided by a four-dimensional analog, we formulate a modification of the free energy via the Lagrange multiplier technique. We conjectur
Externí odkaz:
http://arxiv.org/abs/1105.3979
Autor:
Amariti, Antonio, Siani, Massimo
The three dimensional exact R symmetry of N=2 SCFTs extremizes the partition function localized on a three sphere. Here we verify this statement at weak coupling. We give a detailed analysis for two classes of models. The first one is an SU(N)_k gaug
Externí odkaz:
http://arxiv.org/abs/1105.0933
Autor:
Siani, Massimo
We study a model describing a four-dimensional holographic superconductor whose properties depend non-trivially on a particular spatial direction, namely a Josephson junction. We analyze the parameter dependence of the condensate and compare it to th
Externí odkaz:
http://arxiv.org/abs/1104.4463
Autor:
Siani, Massimo
Publikováno v:
JHEP 1012:035,2010
We study a fully backreacted holographic model of a four-dimensional superconductor by including a higher curvature interaction in the bulk action. We study how the critical temperature and the field theory condensate vary in this model and conclude
Externí odkaz:
http://arxiv.org/abs/1010.0700
Publikováno v:
JHEP 1102:092,2011
We study dynamical supersymmetry breaking in vector-like superconformal N=1 gauge theories. We find appropriate deformations of the superpotential to overcome the problem of the instability of the non supersymmetric vacuum. The request for long lifet
Externí odkaz:
http://arxiv.org/abs/1003.0523