Evidence for multiple mechanisms underlying surface electric-field noise in ion traps [PDF]
Phys. Rev. A 98, 063430 (2018), 2018 Electric-field noise from ion-trap electrode surfaces can limit the fidelity of multiqubit entangling operations in trapped-ion quantum information processors and can give rise to systematic errors in trapped-ion optical clocks. The underlying mechanism for this noise is unknown, but it has been shown that the noise amplitude can be reduced by ...
arxiv +1 more source
Electric field measurements made on a robotic platform [PDF]
arXiv, 2021 This presentation reports the first known data from a field mill mounted on a ground-based robotic platform. The robot's motor and electrostatic charging of its wheels do not perturb the field mill data, and electric field varies smoothly whilst the robot is moving.
arxiv
Electrically charged finite energy solutions of an $SO(5)$ and an $SU(3)$ Higgs-Chern-Simons--Yang-Mills-Higgs systems in $3+1$ dimensions [PDF]
Int. J. Mod. Phys. A 30, 1550079 (2015), 2014 We study spherically symmetric finite energy solutions of two Higgs-Chern-Simons--Yang-Mills-Higgs (HCS-YMH) models in $3+1$ dimensions, one with gauge group $SO(5)$ and the other with $SU(3)$. The Chern-Simons (CS) densities are defined in terms of both the Yang-Mills (YM) and Higgs fields and the choice of the two gauge groups is made so they do not ...
arxiv +1 more source
Asymptotic structure of Carrollian limits of Einstein-Yang-Mills theory in four spacetime dimensions [PDF]
, 2022 In this paper, three things are done. First, we study from an algebraic point of view the infinite-dimensional BMS-like extensions of the Carroll algebra relevant to the asymptotic structure of the electric and magnetic Carrollian limits of Einstein gravity.
arxiv +1 more source
Lightning risk warnings based on atmospheric electric field measurements in Brazil [PDF]
Journal of Aerospace Technology and Management, 2011 This paper presents a methodology that employs the electrostatic field variations caused by thundercloud formation or displacement to generate lightning warnings over a region of interest in Southeastern Brazil.
Marco Antonio da Silva Ferro* +4 more
doaj
An Intelligent Lightning Warning System Based on Electromagnetic Field and Neural Network
Energies, 2019 Prediction of lightning occurrence has significant relevance for reducing potential damage to electric installations, buildings, and humans. However, the existing lightning warning system (LWS) operates using the threshold method and has low prediction ...
Guoming Wang +4 more
doaj +1 more source
Energies, 2020 During reclosure of 275 kV cable circuits used for voltage control, excessive overvoltages were observed on the network. Such events cause onerous and costly failures.
Stephen Robson +3 more
doaj +1 more source
Modular Symmetry and Fractional Charges in N=2 Supersymmetric Yang-Mills and the Quantum Hall Effect [PDF]
SIGMA 3:010,2007, 2006 The parallel roles of modular symmetry in ${\cal N}=2$ supersymmetric Yang-Mills and in the quantum Hall effect are reviewed. In supersymmetric Yang-Mills theories modular symmetry emerges as a version of Dirac's electric -- magnetic duality. It has significant consequences for the vacuum structure of these theories, leading to a fractal vacuum which ...
arxiv +1 more source
3-String Junction and BPS Saturated Solutions in SU(3) Supersymmetric Yang-Mills Theory [PDF]
Phys.Lett.B431:303-310,1998, 1998 We construct BPS saturated regular configurations of N=4 SU(3) supersymmetric Yang-Mills theory carrying non-parallel electric and magnetic charges. These field theory BPS states correspond to the string theory BPS states of 3-string junctions connecting three different D3-branes by regarding the N=4 supersymmetric Yang-Mills theory as an effective ...
arxiv +1 more source
Inflationary Dynamics with a Non-Abelian Gauge Field [PDF]
Phys. Rev. D 87: 023528 (2013), 2012 We study the dynamics of the universe with a scalar field and an SU(2) non-Abelian Gauge (Yang-Mills) field. The scalar field has an exponential potential and the Yang-Mills field is coupled to the scalar field with an exponential function of the scalar field.
arxiv +1 more source