منابع مشابه
Magnetic Monopoles, Fiber Bundles, and Gauge Fields
The reports in this monograph have shown great enthusiasm and exuberance for the unification of various interactions through the concept of gauge fields. I would like to emphasize a point that has not yet been explicitly stated by any of the other authors: gauge fields are deeply related to some profoundly beautiful ideas of contemporary mathematics, ideas that are the driving forces of part of...
متن کاملMagnetic monopoles from gauge theory phase transitions
Thermal fluctuations of the gauge field lead to monopole formation at the grand unified phase transition in the early universe, even if the transition is merely a smooth crossover. The dependence of the produced monopole density on various parameters is qualitatively different from theories with global symmetries, and the monopoles have a positive correlation at short distances. The number dens...
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We investigate the Laplacian Abelian gauge on the sphere S in the background of a single ‘t Hooft instanton. To this end we solve the eigenvalue problem of the covariant Laplace operator in the adjoint representation. The ground state wave function serves as an auxiliary Higgs field. We find that the ground state is always degenerate and has nodes. Upon diagonalisation, these zeros induce toplo...
متن کاملMagnetic Monopoles, Center Vortices and Topology of Gauge Fields
Recent lattice calculations have given strong evidence for two confinement scenarios: 1. the dual Meissner effect [1], which is based on a condensate of magnetic monopoles in the QCD vacuum and 2. the center vortex picture [2], where the vacuum consists of a condensate of magnetic flux tubes which are closed due to the Bianchi identity. There are also lattice calculations which indicate that th...
متن کاملFormation of Magnetic Monopoles in Hot Gauge Theories
In the non-inflationary Big Bang scenario, magnetic monopoles formed at the phase transition of the Grand Unified Theory (GUT) lead to a severe cosmological problem, because their energy density would be so high that the universe would have collapsed under its own weight a long time ago. This problem is famously solved by inflation, provided that the temperature of the universe never reaches th...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1977
ISSN: 0370-2693
DOI: 10.1016/0370-2693(77)90076-4