Results 51 to 60 of about 626 (115)
Recrudescence of massive fermion production by oscillons
We bring together the physics of preheating, following a period of inflation, and the dynamics of non-topological solitons, namely oscillons. We show that the oscillating condensate that makes up an oscillon can be an efficient engine for producing heavy
Paul M. Saffin
doaj +1 more source
Aspects of D-Branes as BPS monopoles [PDF]
We investigate some of the properties of D-brane configurations which behave as BPS monopoles. The two D-brane configurations we will study are the enhançon and D-strings attached to D3-branes.We will start by investigating D3-branes wrapped on a K3 ...
Barrett, Jessica K, Barrett, Jessica K.
core
The self-dual classical double copy, and the Eguchi-Hanson instanton
The double copy is a map from non-abelian gauge theories to gravity, that has been demonstrated both for scattering amplitudes and exact classical solutions.
David S. Berman +3 more
doaj +1 more source
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
Classical solutions of sigma models in (2+1) dimensions [PDF]
This work is concerned with the large class of nonlinear scalar field theories known as σ-models, and in particular with their classical solutions.
Leese, R.A, Leese, Robert Anthony
core
Solitons in low-dimensional sigma models [PDF]
The aim of this thesis is to study topological soliton solutions in classical field theories, called sigma models, on a three-dimensional space. In chapter 1 we review the general field-theoretical framework of classical soliton solutions and exemplify ...
Gladikowski, J., Gladikowski, Jens
core
A falling magnetic monopole as a holographic local quench
An analytic static monopole solution is found in global AdS4, in the limit of small backreaction. This solution is mapped in Poincaré patch to a falling monopole configuration, which is dual to a local quench triggered by the injection of a condensate ...
Nicolò Zenoni +4 more
doaj +1 more source
Supersymmetric probes of wrapped M5-brane backgrounds [PDF]
In this thesis we consider supersymmetric probes in backgrounds sourced by an M5-brane which is wrapped on holomorphic 2-cycles in C(^2) and C(^3), respectively. For the first case, we use M2-brane probes to compute the BPS spectra of the corresponding N
Loureda, José Manuel Sanchez
core
Revisiting soliton contributions to perturbative amplitudes [PDF]
Open Access funded by SCOAP3. CP is a Royal Society Research Fellow and partly supported by the U.S. Department of Energy under grants DOE-SC0010008, DOE-ARRA-SC0003883 and DOE-DE-SC0007897. ABR is supported by the Mitchell Family Foundation. We would
Papageorgakis, Constantinos +5 more
core +1 more source
Axion strings are superconducting
We explore the cosmological consequences of the superconductivity of QCD axion strings. Axion strings can support a sizeable chiral electric current and charge density, which alters their early universe dynamics. We examine the possibility that shrinking
Hajime Fukuda +3 more
doaj +1 more source

