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Q-balls and charged Q-balls in a two-scalar field theory with generalized Henon-Heiles potential
30 avril 2024,
- CeREF Technique
,
- Article scientifique
Article scientifique
We construct Q-ball solutions from a model consisting of one massive scalar field ξ and one massive
complex scalar field ϕ interacting via the cubic couplings g1ξϕ ϕ þ g2ξ3, typical of Henon-Heiles-like
potentials. Although being formally simple, these couplings allow for Q-balls. In one spatial dimension,
analytical solutions exist, either with vanishing or nonvanishing ϕ. In three spatial ...
ZN-balls: Solitons from ZN-symmetric scalar field theory
28 novembre 2022,
- CeREF Technique
,
- Article scientifique
Article scientifique
We discuss the conditions under which static, finite-energy, configurations of a complex scalar field ϕ
with constant phase and spherically-symmetric norm exist in a potential of the form V(ϕ*ϕ, ϕ^N, ϕ^*N)
with N ∈ N and N ≥ 2, i.e., a potential with a ZN-symmetry. Such configurations are called ZN-balls. We
build explicit solutions in (3 + 1)-dimensions from a model mimicking effective field ...
ZN-balls: Existence and application to Yang-Mills plasma
02 juin 2022,
- CeREF Technique
,
- Autre
Autre
Conférence donnée à "Exact solutions in classical field theory: Solitons, black holes and bosons stars – Workshop en l’honneur de Yves Brihaye", UMONS, 2-3 juin 2022.
https://web.umons.ac.be/pucg/event/workshop-en-lhonneur-de-yves-brihaye/
Gravitating Bubbles of Gluon Plasma above Deconfinement Temperature
13 octobre 2020,
- CeREF Technique
,
- Article scientifique
Article scientifique
The equation of state of SU(3) Yang–Mills theory can be modelled by an effective Z3−
symmetric potential depending on the temperature and on a complex scalar field ϕ
. Allowing ϕ
to be dynamical opens the way to the study of spatially localized classical configurations of the scalar field. We first show that spherically symmetric static Q-balls exist in the range (1−1.21)×Tc
, Tc
being the ...