Results 1 to 10 of about 13,559 (286)

Holographic entanglement density for spontaneous symmetry breaking

Journal of High Energy Physics, 2022
We investigate the properties of the holographic entanglement entropy of the systems in which the U(1) or the translational symmetry is broken spontaneously.
Hyun-Sik Jeong, Keun-Young Kim, Ya-Wen Sun   +2 more
doaj   +2 more sources

On-shell constructibility of Born amplitudes in spontaneously broken gauge theories

Journal of High Energy Physics, 2020
We perform a comprehensive study of on-shell recursion relations for Born amplitudes in spontaneously broken gauge theories and identify the minimal shifts required to construct amplitudes with a given particle content and spin quantum numbers.
Robert Franken, Christian Schwinn
doaj   +1 more source

Probing $\delta_{CP}$ phase and charged lepton flavour violation with $A_4$ flavor symmetry and deviations to tri-bi-maximal mixing via $z_2 \times z_2$ invariant perturbation in the neutrino sector

SciPost Physics Proceedings
In this work, a flavour theory of a neutrino mass model based on $A_{4}$ symmetry is considered to explain the phenomenology of CP violation phase and charged lepton flavour violation.
Gayatri Ghosh
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Minimally doubled fermions and spontaneous chiral symmetry breaking

EPJ Web of Conferences, 2018
Chiral symmetry breaking in massless QCD is a very important feature in the current understanding of low energy physics. Low - lying Dirac modes are suitable to help us understand the spontaneous chiral symmetry breaking, since the formation of a non ...
Osmanaj (Zeqirllari) Rudina, Hyka (Xhako) Dafina   +1 more
doaj   +1 more source

Naturally light neutrinos in Diracon model

Physics Letters B, 2016
We propose a simple model for Dirac neutrinos where the smallness of neutrino mass follows from a parameter κ whose absence enhances the symmetry of the theory.
Cesar Bonilla, Jose W.F. Valle
doaj   +1 more source

Nonlocal complex short pulse equation in $${\mathcal{P}\mathcal{T}}$$ -symmetry like symmetry breaking, breather–grammian interactions and soliton solutions

Scientific Reports
Research on $${\mathcal{P}\mathcal{T}}$$ -symmetry and spontaneous symmetry breaking captivates contemporary scholars due to its extensive applicability in several fields, including microwave propagation and nonlinear optics.
Zeeshan Amjad, Faisal Javed, Dragan Pamucar, Moataz Alosaimi, Mamo Abebe Ashebo   +4 more
doaj   +1 more source

Phases of Pseudo-Nambu-Goldstone bosons

Journal of High Energy Physics
We study the vacuum dynamics of pseudo-Nambu-Goldstone bosons (pNGBs) for SO(N + 1) → SO(N) spontaneous and explicit symmetry breaking. We determine the magnitude of explicit symmetry breaking consistent with an EFT description of the effective potential
Fotis Koutroulis, Matthew McCullough, Marco Merchand, Stefan Pokorski, Kazuki Sakurai   +4 more
doaj   +1 more source

Minima of classically scale-invariant potentials

Journal of High Energy Physics, 2021
We propose a new formalism to analyse the extremum structure of scale-invariant effective potentials. The problem is stated in a compact matrix form, used to derive general expressions for the stationary point equation and the mass matrix of a multi ...
Kristjan Kannike, Kaius Loos, Luca Marzola   +2 more
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symmetry broken supersolid in spin–orbit-coupled Bose–Einstein condensates

New Journal of Physics
Supersolid is an exotic state of matter characterized by both superfluid properties and periodic particle density modulation, due to spontaneous breaking of U (1) gauge symmetry and spatial translation symmetry, respectively. For conventional supersolids,
Ze-Hong Guo, Qizhong Zhu
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Spontaneous conformal symmetry breaking in fishnet CFT

Physics Letters B, 2020
Quantum field theories with exact but spontaneously broken conformal invariance have an intriguing feature: their vacuum energy (cosmological constant) is equal to zero. Up to now, the only known ultraviolet complete theories where conformal symmetry can
Georgios K. Karananas, Vladimir Kazakov, Mikhail Shaposhnikov   +2 more
doaj   +1 more source