Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"Magnetic Monopoles"”.
-
A direct search for Dirac magnetic monopoles
Magnetic monopoles are highly ionizing and curve in the direction of the magnetic field. A new dedicated magnetic monopole trigger at CDF, which requires large light pulses in the scintillators of the time-of-flight system, remains highly efficient to monopoles while consuming a tiny fraction of …
-
Index theorems and magnetic monopoles on asymptotically conic manifolds
… and give an application to the moduli space of magnetic monopoles on these spaces. The index theorem originally due to C. Callias and later generalized by N. Anghel and others concerns operators of the form ... is a family of Hermitian invertible matrices. The first result is a …
-
Search for Magnetic Monopoles and Stable High-Electric-Charge Objects in 13 TeV Centre-of-Mass Energy Proton-Proton Collisions with the ATLAS Detector at the LHC
… of classical electrodynamics is the absence of a magnetic monopole, despite the existence of isolated electric charges. The existence of such a particle with net magnetic charge not only restores the symmetry between electricity and magnetism but also provides an explanation for the quantization …
-
Dynamics of frustrated magnetic systems – Emergent fractals and anomalous magnetic noise in spin ice
… to the suppression of conventional long-ranged magnetic ordering, through a mechanism known as frustration. One of the typical features is the appearance of a large number of degenerate (or nearly degenerate) minimal energy states, that can exhibit topological order. The dynamical properties of …
-
Monopoles and U(1) lattice gauge theory
… These topological objects are identified as magnetic monopoles. Using configurations of monopoles identified in gauge field simulations in four dimensions, I study the behavior of the monopoles near the confinement-deconfinement transition.
-
Numerical tests of dual superconductivity in non-abelian lattice gauge theories
… in these calculations, I review the history of magnetic monopoles and dual superconductivity. The calculational procedure for determining the part of the quark-antiquark potential produced by magnetic currents is then developed. The computer algorithms required to perform these numerical tests …
-
Astroparticle physics with nuclear track detectors
… for exotic heavy particles -Intermediate Mass Magnetic Monopoles, Nuclearites and Q-balls with the SLIM experiment at the Chacaltaya High Altitude Laboratory (5230 m, Bolivia), establishing upper limits (90% CL) in the absence of candidates, which are among the best if not the only one for all …
-
Gauge -Balls, Glueballs and Monopoles in Pure U(1), SU(2) Lattice Gauge Theories
… beta = 1.01 on the 164 lattice to determine if magnetic monopoles can account for the lightest gauge-ball masses. It is established that the monopoles indeed allow to compute the masses of these particles with the exception of the 2 +- state where there is a 17 percent disagreement between link …
-
Gauge-balls, glueballs and monopoles in pure U(1), SU(2) lattice gauge theories
… at β = 1.01 on the 16^4 lattice to determine if magnetic monopoles can account for the lightest gauge-ball masses. It is established that the monopoles indeed allow to compute the masses of these particles with the exception of the 2+- state where there is a 17 percent disagreement between link …
-
Novel Electromagnetic Properties of Elementary Particles
… couple to the photon? We discuss neutrino electromagnetic properties, a dark photon portal to dark matter and magnetic monopoles produced by cosmic rays in the milky way. We don't just discuss these models, but show how to place(in some cases) leading constraints on these models using future …
-
Mocking quantum mechanics: Semiclassical and machine-learning approaches to frustrated magnetism
… excitations, such as emergent photons or magnetic monopoles. We developed a systematic approach, based on a large-S bosonisation formalism, to extract gauge-theoretic descriptions from such constrained Hamiltonians automatically, and thus make them amenable to the powerful techniques of …
-
Pyrochlore spin ice Dy2Ti2O7: Investigating a platform for magnetic monopolar quasiparticles
"Spin ice is a frustrated magnetic state exhibiting a residual entropy in the magnetic degrees of freedom down to the lowest experimentally measured temperatures. The pyrochlore oxide dysprosium titanate (Dy2Ti2O7) supports a spin ice state on its tetrahedral sublattice of dysprosium spins at low …
-
Solitons and dualities in 2+1 dimensions
… class of Kähler manifolds. Third, we consider magnetic Skyrmions in ferromagnetic materials. We produce a continuum toy model of fractionalised electrons in three spatial dimensions describing magnetic Skyrmions and their creation and destruction via emergent magnetic monopoles. When an …
-
Discontinuous Galerkin methods for compressible and incompressible flows on space-time adaptive meshes
… presence of viscosity, thermal conductivity and magnetic resistivity [116]. In particular, the adopted formalism is quite general, leading to a novel family of adaptive ADER-DG schemes suitable for hyperbolic systems of partial differential equations in which the numerical fluxes also depend on …
-
Conformal Boundaries, SPTs, and the Monopole-Fermion Problem
… Our main motivation is the question of defining magnetic line operators in 4d chiral gauge theories. Such line operators were originally introduced by 't Hooft in the 1970s, and have seen a recent upsurge in interest after their refinement by Kapustin and Seiberg, but have only ever been defined …
-
ΙΣΟΤΟΠΙΚΗ ΓΕΝΙΚΕΥΣΗ ΤΩΝ ΘΕΩΡΙΩΝ ΒΑΘΜΙΔΑΣ
… SYMMETRIC FORM AND PROVIDE THE EXISTENCE OF THE MAGNETIC CURRENT IN THE HADRONIC MATTER. THUS THE DISCOVERY OF THE MAGNETIC MONOPOLY MUST BE INVESTIGATED INTO THE COMPACT REGION OF THE THE HADRONIC. FINALLY, THE PROPAGATION OF THE ELECTROMAGNETIC WAVES INTO A RESISTIVE MEDIUM, PASSES THE …