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19922026
most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

Showing 2008 · hep-thShow all

22 papers · 2 filters

hep-th2008★ 5 cited

Consistent gravitational anomalies for chiral bosons

Stefano Giaccari, Pietro Menotti

Exact consistent gravitational anomalies for chiral bosons in two dimensions are treated both with the Schwinger-DeWitt regularization and independently through a cohomological pro…

hep-th2008★ 24 cited

Giant magnons and spiky strings on the conifold

Sergio Benvenuti, Erik Tonni

We find explicit solutions for giant magnons and spiky strings on the squashed three dimensional sphere. For a special value of the squashing parameter the solutions describe strin…

hep-th2008★ 3 cited

Static Interactions of U(N) non-Abelian Vortices

Minoru Eto

Interactions between non-BPS non-Abelian vortices are studied in non-Abelian U(1) x SU(N) extensions of the Abelian-Higgs model in four dimensions. In addition to the usual type I/…

hep-th2008★ 26 cited

Dynamics of Strings between Walls

Minoru Eto, Toshiaki Fujimori, Takayuki Nagashima +3

Configurations of vortex-strings stretched between or ending on domain walls were previously found to be 1/4 Bogomol'nyi-Prasad-Sommerfield(BPS) states in N=2 supersymmetric gauge…

hep-th2008

A Generalized Construction for Lumps and Non-Abelian Vortices

Walter Vinci

We construct the general vortex solution in a fully-Higgsed, color-flavor locked vacuum of a non-Abelian gauge theory, where the gauge group is taken to be the product of an arbitr…

hep-th2008★ 19 cited

On the Stability of Non-Abelian Semi-local Vortices

Roberto Auzzi, Minoru Eto, Sven Bjarke Gudnason +2

We study the stability of non-Abelian semi-local vortices based on an N=2 supersymmetric H = [SU(Nc) x U(1)]/Z_Nc = U(Nc) gauge theory with an arbitrary number of flavors (Nf > Nc)…

hep-th2008★ 22 cited

Quantum Fields on Star Graphs with Bound States at the Vertex

B. Bellazzini, M. Mintchev, P. Sorba

We investigate the propagation of a massless scalar field on a star graph, modeling the junction of quantum wires. The vertex of the graph is represented by a point-like impuri…

hep-th2008★ 18 cited

Advent of Non-Abelian Vortices and Monopoles-- further thoughts about duality and confinement

Kenichi Konishi

Recent development on non-Abeliann vortices and monopoles is reviewed with an emphasis on their relevance on confinement and duality. A very recent construction of non-Abelian vort…

hep-th2008★ 31 cited

SO and USp Kahler and Hyper-Kahler Quotients and Lumps

Minoru Eto, Toshiaki Fujimori, Sven Bjarke Gudnason +2

We study non-linear sigma models whose target spaces are the Higgs phases of supersymmetric SO and USp gauge theories by using the Kahler and hyper-Kahler quotient constructions. W…

hep-th2008★ 84 cited

Weighted power counting and Lorentz violating gauge theories. II: Classification

Damiano Anselmi

We classify the local, polynomial, unitary gauge theories that violate Lorentz symmetry explicitly at high energies and are renormalizable by weighted power counting. We study the…

hep-th2008★ 100 cited

Weighted power counting and Lorentz violating gauge theories. I: General properties

Damiano Anselmi

We construct local, unitary gauge theories that violate Lorentz symmetry explicitly at high energies and are renormalizable by weighted power counting. They contain higher space de…

hep-th2008★ 913 cited

Bounding scalar operator dimensions in 4D CFT

Riccardo Rattazzi, Vyacheslav S. Rychkov, Erik Tonni +1

In an arbitrary unitary 4D CFT we consider a scalar operator ϕ, and the operator ϕ^2 defined as the lowest dimension scalar which appears in the OPE ϕ\timesϕwith a nonzero coeffici…

hep-th2008★ 59 cited

d=4 Attractors, Effective Horizon Radius and Fake Supergravity

S. Ferrara, A. Gnecchi, A. Marrani

We consider extremal black hole attractors (both BPS and non-BPS) for N=3 and N=5 supergravity in d=4 space-time dimensions. Attractors for matter-coupled N=3 theory are similar to…

hep-th2008★ 4 cited

Surface operators and magnetic degrees of freedom in Yang-Mills theories

A. Di Giacomo, V. I. Zakharov

Magnetic degrees of freedom are manifested through violations of the Bianchi identities and associated with singular fields. Moreover, these singularities should not induce color n…

hep-th2008★ 2 cited

Flux-Tube Formation and Holographic Tunneling

A. S. Gorsky, V. I. Zakharov

We consider correlator of two concentric Wilson loops, a small and large ones related to the problem of flux-tube formation. There are three mechanisms which can contribute to the…

hep-th2008★ 11 cited

A large N phase transition in the continuum two dimensional SU(N) X SU(N) principal chiral model

R. Narayanan, H. Neuberger, E. Vicari

It is established by numerical means that the continuum large N principal chiral model in two dimensions has a phase transition in a smoothed two point function at a critical dista…

hep-th2008★ 50 cited

Domain Walls with Non-Abelian Clouds

Minoru Eto, Toshiaki Fujimori, Muneto Nitta +2

Domain walls in U(N) gauge theories, coupled to Higgs scalar fields with degenerate masses, are shown to possess normalizable non-Abelian Nambu-Goldstone(NG) modes, which we call n…

hep-th2008★ 232 cited

Theta dependence of SU(N) gauge theories in the presence of a topological term

Ettore Vicari, Haralambos Panagopoulos

We review results concerning the theta dependence of 4D SU(N) gauge theories and QCD, where theta is the coefficient of the CP-violating topological term in the Lagrangian. In part…

hep-th2008★ 62 cited

Weighted scale invariant quantum field theories

Damiano Anselmi

We study a class of Lorentz violating quantum field theories that contain higher space derivatives, but no higher time derivatives, and become renormalizable in the large N expansi…

hep-th2008★ 69 cited

Constructing Non-Abelian Vortices with Arbitrary Gauge Groups

Minoru Eto, Toshiaki Fujimori, Sven Bjarke Gudnason +4

We construct the general vortex solution in the fully-Higgsed, color-flavor locked vacuum of a non-Abelian gauge theory, where the gauge group is taken to be the product of an arbi…

hep-th2008★ 20 cited

Quantum Field Theory on Star Graphs

B. Bellazzini, M. Burrello, M. Mintchev +1

We discuss some basic aspects of quantum fields on star graphs, focusing on boundary conditions, symmetries and scale invariance in particular. We investigate the four-fermion bulk…

hep-th2008★ 13 cited

Non-Abelian Vortices without Dynamical Abelianization

Daniele Dorigoni, Kenichi Konishi, Keisuke Ohashi

Vortices carrying truly non-Abelian flux moduli, which do not dynamically reduce to Abelian vortices, are found in the context of softly-broken supersymmetric chromody…