Results 71 to 80 of about 3,586 (115)

A Smörgåsbord of Skyrmions

Journal of High Energy Physics, 2022
We study static solutions of the standard Skyrme model with a pion mass. Using approximately 105 pseudo-random initial configurations made of single Skyrmions in the non-symmetrized product Ansatz and an automatic detection of repeated solutions, we find
Sven Bjarke Gudnason, Chris Halcrow
doaj   +1 more source

Topological objects in QCD

, 2007
Topological excitations are prominent candidates for explaining nonperturbative effects in QCD like confinement. In these lectures, I cover both formal treatments and applications of topological objects.
Bruckmann, Falk
core   +1 more source

Oscillons and bubbles in Q-ball dynamics

Journal of High Energy Physics
We show that, in the thin-wall regime, Q-ball-anti-Q-ball collisions reveal chaotic behaviour. This is explained by the resonant energy transfer mechanism triggered by the internal modes hosted by the Q-balls and by the existence of ephemeral states ...
D. Canillas Martínez, P. Dorey, T. Romańczukiewicz, Paul M. Saffin, K. Sławińska, A. Wereszczyński   +5 more
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Dynamically assisted Sauter-Schwinger effect — non-perturbative versus perturbative aspects

Journal of High Energy Physics, 2017
The Sauter-Schwinger effect predicts the creation of electron-positron pairs out of the quantum vacuum by a strong and slowly varying electric field.
G. Torgrimsson, C. Schneider, J. Oertel, R. Schützhold   +3 more
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Projectors, matrix models and noncommutative instantons

, 2004
We deconstruct the finite projective modules for the fuzzy four-sphere, described in a previous paper, and correlate them with the matrix model approach, making manifest the physical implications of noncommutative topology.
Valtancoli, P.
core   +1 more source

Self-consistent Analytic Solutions in Twisted $\mathbb{C}P^{N-1}$ Model in the Large-$N$ Limit

, 2018
We construct self-consistent analytic solutions in the ${\mathbb C}P^{N-1}$ model in the large-$N$ limit, in which more than one Higgs scalar component take values inside a single or multiple soliton on an infinite space or on a ring, or around ...
Nitta, Muneto, Yoshii, Ryosuke
core   +1 more source

A supersymmetric exotic field theory in (1+1) dimensions: one loop soliton quantum mass corrections

Journal of High Energy Physics, 2018
We consider one loop quantum corrections to soliton mass for the N = 1 $$ \mathcal{N}=1 $$ supersymmetric extension of the (1+1)-dimensional scalar field theory with the potential U (ϕ) = ϕ 2 cos2 (ln ϕ 2).
A. R. Aguirre, G. Flores-Hidalgo
doaj   +1 more source

The Partonic Nature of Instantons

, 2009
In both Yang-Mills theories and sigma models, instantons are endowed with degrees of freedom associated to their scale size and orientation. It has long been conjectured that these degrees of freedom have a dual interpretation as the positions of ...
A.R. Zhitnitsky, A.S. Gorsky, Benjamin Collie, D. Gaiotto, D. Gaiotto, D. Harland, David Tong, J.A. Harvey, M. Aganagic, M. Eto ., M.-Y. Choi, N. Arkani-Hamed, S. Kim, V. Borokhov, W. Brendel   +14 more
core   +3 more sources

False vacuum decay of excited states in finite-time instanton calculus

Journal of High Energy Physics
Extracting information about a system’s metastable ground state energy employing functional methods usually hinges on utilizing the late-time behavior of the Euclidean propagator, practically impeding the possibility of determining decay widths of ...
B. Garbrecht, N. Wagner
doaj   +1 more source

Transplanckian censorship and global cosmic strings

Journal of High Energy Physics, 2017
Large field excursions are required in a number of axion models of inflation. These models also possess global cosmic strings, around which the axion follows a path mirroring the inflationary trajectory. Cosmic strings are thus an interesting theoretical
Matthew J. Dolan, Patrick Draper, Jonathan Kozaczuk, Hiren Patel   +3 more
doaj   +1 more source