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19 papers · 2 filters
Stabilisation of semilocal strings by dark scalar condensates
Péter Forgács, Árpád Lukács
Semilocal and electroweak strings are well-known to be unstable against unwinding by the condensation of the second Higgs component in their cores. A large class of current models…
On Painlevé/gauge theory correspondence
Giulio Bonelli, Oleg Lisovyy, Kazunobu Maruyoshi +2
We elucidate the relation between Painlevé equations and four-dimensional rank one theories by identifying the connection associated to Painlevé isomonodromic problem…
Mixed-symmetry fields in de Sitter space: a group theoretical glance
Thomas Basile, Xavier Bekaert, Nicolas Boulanger
We rederive the characters of all unitary irreducible representations of the -dimensional de Sitter spacetime isometry algebra , and propose a dictiona…
Interacting fermions in rotation: chiral symmetry restoration, moment of inertia and thermodynamics
M. N. Chernodub, Shinya Gongyo
We study rotating fermionic matter at finite temperature in the framework of the Nambu-Jona-Lasinio model. In order to respect causality the rigidly rotating system must be bound b…
Duality and helicity: the photon wave function approach
M. Elbistan, P. A. Horvathy, P. -M. Zhang
The photon wave equation proposed in terms of the Riemann-Silberstein vector is derived from a first-order Dirac/Weyl-type action principle. It is symmetric w.r.t. duality transfor…
Degenerate higher order scalar-tensor theories beyond Horndeski up to cubic order
Jibril Ben Achour, Marco Crisostomi, Kazuya Koyama +3
We present all scalar-tensor Lagrangians that are cubic in second derivatives of a scalar field, and that are degenerate, hence avoiding Ostrogradsky instabilities. Thanks to the e…