Results 81 to 90 of about 626 (115)

Cosmic string in Abelian-Higgs model with enhanced symmetry - Implication to the axion domain-wall problem. [PDF]

J High Energy Phys, 2020
Hiramatsu T, Ibe M, Suzuki M.
europepmc   +1 more source

T-duality invariant approaches to string theory [PDF]

, 2010
PhDThis thesis investigates the quantum properties of T-duality invariant formalisms of String Theory. We introduce and review duality invariant formalisms of String Theory including the Doubled Formalism.
Thompson, Daniel C.
core   +2 more sources

Nonabelian Faddeev-Niemi Decomposition of the SU(3) Yang-Mills Theory

, 2011
Faddeev and Niemi (FN) have introduced an abelian gauge theory which simulates dynamical abelianization in Yang-Mills theory (YM). It contains both YM instantons and Wu-Yang monopoles and appears to be able to describe the confining phase.
Michelini, Alberto, Michelini A., J. Evslin, Evslin, Jarah, Giacomelli, Simone, Konishi, Kenichi, Evslin J, S. Giacomelli, K. Konishi, Giacomelli S, A. Michelini   +10 more
core   +1 more source

Higher Derivative Corrections to Non-Abelian Vortex Effective Theory,” Prog. Theor. Phys

, 2012
We give a systematic method to calculate higher derivative corrections to low-energy effective theories of solitons, which are in general nonlinear sigma models on the moduli spaces of the solitons.
Keisuke Ohashi, Minoru Eto, Muneto Nitta, Norisuke Sakai, Toshiaki Fujimori   +4 more
core  

Oscillons in AdS space

Journal of High Energy Physics
We study oscillons in a real scalar field theory in a (3+1)-dimensional AdS space with global coordinates. The initial configuration is given by a Gaussian shape with an appropriate core size as in Minkowski spacetime.
Takaaki Ishii, Takaki Matsumoto, Kanta Nakano, Ryosuke Suda, Kentaroh Yoshida   +4 more
doaj   +1 more source

The enhancon mechanism in string theory [PDF]

, 2002
The enhancon mechanism is a specific phenomenon in string theory which resolves a certain naked spacetime singularity arising in the supergravity description related to N = 2 supersymmetric pure gauge theory.
Järv, Laur
core  

The inevitability of sphalerons in field theory. [PDF]

Philos Trans A Math Phys Eng Sci, 2019
Manton NS.
europepmc   +1 more source

Instabilities of gauged Q-balls

Journal of High Energy Physics
We present the first analytical calculation that shows that perturbations with angular dependence can lead to an instability in gauged Q-balls. We find an explicit condition on the parameters for the Q-ball to become unstable.
Arvind Rajaraman
doaj   +1 more source

The companion equations and the moyal-nahm equations [PDF]

, 2000
The first part of this thesis is concerned with the companion equations. These are equations of motion for the companion Lagrangian which is proposed to be the Lagrangian for a field theory associated with strings and branes, similar to the Klein-Gordon ...
Baker, Linda Margaret
core  

The metamorphosis of semi-classical mechanisms of confinement: from monopoles on ℝ 3 × S 1 to center-vortices on ℝ 2 × T 2

Journal of High Energy Physics
There are two distinct regimes of Yang-Mills theory where we can demonstrate confinement, the existence of a mass gap, and the multi-branch structure of the effective potential as a function of the theta angle using a reliable semi-classical calculation.
Canberk Güvendik, Thomas Schaefer, Mithat Ünsal   +2 more
doaj   +1 more source