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- Publications
- Influence
On periodically driven AdS/CFT
- R. Auzzi, S. Elitzur, S. B. Gudnason, E. Rabinovici
- Physics
- 9 August 2013
A bstractWe use the AdS/CFT correspondence to study a thermally isolated conformal field theory in four dimensions which undergoes a repeated deformation by an external periodic time-dependent source… Expand
Fractional and semi-local non-Abelian Chern-Simons vortices
- S. B. Gudnason
- Physics
- 4 May 2010
Abstract In this paper we study fractional as well as semi-local Chern–Simons vortices in G = U ( 1 ) × SO ( 2 M ) and G = U ( 1 ) × USp ( 2 M ) theories. The master equations are solved numerically… Expand
Non-Abelian Chern–Simons vortices with generic gauge groups
- S. B. Gudnason
- Physics
- 1 June 2009
Abstract We study non-Abelian Chern–Simon BPS-saturated vortices enjoying N = 2 supersymmetry in d = 2 + 1 dimensions, with generic gauge groups of the form U ( 1 ) × G ′ , with G ′ being a simple… Expand
Transmission electron microscopy study of individual carbon nanotube breakdown caused by Joule heating in air.
- K. Mølhave, S. B. Gudnason, A. Pedersen, C. Clausen, A. Horsewell, P. Bøggild
- Materials Science, Medicine
- Nano letters
- 6 July 2006
We present repeated structural and electrical measurements on individual multiwalled carbon nanotubes, alternating between electrical measurements under ambient conditions and transmission electron… Expand
Large-N CP N − 1 sigma model on a finite interval and the renormalized string energy
We continue the analysis started in a recent paper of the large-N two-dimensional CPN−1 sigma model, defined on a finite space interval L with Dirichlet (or Neumann) boundary conditions. Here we… Expand
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Electron irradiation-induced destruction of carbon nanotubes in electron microscopes.
- K. Mølhave, S. B. Gudnason, A. Pedersen, C. Clausen, A. Horsewell, P. Bøggild
- Materials Science, Medicine
- Ultramicroscopy
- 1 December 2007
Observations of carbon nanotubes under exposure to electron beam irradiation in standard transmission electron microscope (TEM) and scanning electron microscope (SEM) systems show that such treatment… Expand
Dark Matter from new Technicolor Theories
- S. B. Gudnason, C. Kouvaris, Francesco Sannino
- Physics
- 4 August 2006
We investigate dark matter candidates emerging in recently proposed technicolor theories. We determine the relic density of the lightest, neutral, stable technibaryon having imposed weak thermal… Expand
Towards working technicolor: Effective theories and dark matter
- S. B. Gudnason, C. Kouvaris, Francesco Sannino
- Physics
- 2 March 2006
A fifth force, of technicolor type, responsible for breaking the electroweak theory is an intriguing extension of the standard model. Recently new theories have been shown to feature walking dynamics… Expand
Flavor of quiver-like realizations of effective supersymmetry
- R. Auzzi, A. Giveon, S. B. Gudnason
- Physics
- 29 December 2011
A bstractWe present a class of supersymmetric models which address the flavor puzzle and have an inverted hierarchy of sfermions. Their construction involves quiver-like models with link fields in… Expand
Vibrational modes of Skyrmions
- S. B. Gudnason, C. Halcrow
- Physics
- 1 November 2018
We study the vibrational modes of Skyrmions with baryon numbers one through eight in the standard Skyrme model. The vibrational modes are found in the harmonic approximation around the classical… Expand