Comment on “Massive electrodynamics and the magnetic monopoles” (original) (raw)
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Massive photons and Dirac monopoles: electric condensate and magnetic confinement
2012
We use the Julia-Toulouse approach (JTA) for condensation of charges and defects to argue that massive photons can coexist consistently with Dirac monopoles. The Proca theory is here obtained via JTA as a hydrodynamic effective theory describing an electric condensate and the mass of the vector boson is responsible for generating a Meissner effect which confines the magnetic defects in pairs of monopoles-antimonopoles connected by physical open magnetic vortices instead of unphysical Dirac branes. The issue of the charge quantization is intrinsically related to the construction of the so-called Dirac brane invariants, which correspond to the physical confining magnetic flux tubes.
2013
Magnetic monopoles have been a subject of interest since Dirac established the relation between the existence of a monopole and charge quantization. 't Hooft and Polyakov proved that they can arise from gauge theories as the result of a non trivial topology. In their scheme the mass of the monopole turns out to be large proportional to the vector meson mass arising from the spontaneous breaking of the symmetry at unification scales. To reduce from the GUT scale to the Standard Model scale we modify the potential in line with Coleman-Weinberg schemes and generate a second deeper minimum turning the original vacuum quantum mechanically unstable. This mechanism leads to radiating monopoles of lower mass which could be detected at LHC.
The Dirac quantization condition and its relationship to the electromagnetic finestructure constant alpha is derived from the initial boundary conditions of the Quantum Big Bang Singularity (QBBS). The QBBS is shown to form a 2/11-dimensional mirror membrane as a 1-dimensional Dirac string relating timespace of a string-membrane epoch preceding the QBBS to the spacetime following the creation event. The Dirac monopole then transforms as a point particle into a space extended elementary particle known as the classical electron and is electro charge coupled as an electropole to the magneto charge of a magnetopole. The electron as a point particle of QFT and QED so becomes the monopolar form of the Dirac monopole as the Dirac electron, but coupled to the elementary quantum geometric templates of the scalar Higgs boson with a dark matter particle defined as a RMP or Restmass Photon. The space occupying classical electron is shown to oscillate on the fermi scale of the nuclear interactions of colour The difficulties in measuring Newton's gravitational constant are found to be directly related to the measured variation in the electromagnetic finestructure constant alpha e as the polar orientation of the Dirac string of the QBBS and as a distribution of t' Hooft-Polyakov monopoles in the Schwarzschild metric at the GUT unification energy scale from 2.7x10 16 GeV* to 8.1x10 17 GeV*.
Can Magnetic Monopoles and Massive Photons Coexist in the Framework of the Same Classical Theory?
Advances in High Energy Physics, 2007
It is well known that one cannot construct a self-consistent quantum field theory describing the nonrelativistic electromagnetic interaction mediated by massive photons between a point-like electric charge and a magnetic monopole. We show that, indeed, this inconsistency arises in the classical theory itself. No semiclassic approximation or limiting procedure for → 0 is used. As a result, the string attached to the monopole emerges as visible also if finite-range electromagnetic interactions are considered in classical framework.
Dirac-like monopoles in a Lorentz- and CPT-violating electrodynamics
Physical Review D, 2007
We study magnetic monopoles in a Lorentz-and CPT-odd electrodynamical framework in (3+1) dimensions. This is the standard Maxwell model extended by means of a Chern-Simons-like term, b µF µν A ν (b µ constant), which respects gauge invariance but violates both Lorentz and CPT symmetries (as a consequence, duality is also lost). Our main interest concerns the analysis of the model in the presence of Dirac monopoles, so that the Bianchi identity no longer holds, which naively yields the non-conservation of electric charge. Since gauge symmetry is respected, the issue of charge conservation is more involved. Actually, the inconsistency may be circumvented, if we assume that the appearance of a monopole induces an extra electric current. The reduction of the model to (2+1) dimensions in the presence of both the magnetic sources and Lorentz-violating terms is presented. There, a quantization condition involving the scalar remnant of b µ , say, the mass parameter, is obtained. We also point out that the breaking of duality may be associated with an asymmetry between electric and magnetic sources in this background, so that the electromagnetic force experienced by a magnetic pole is supplemented by an extra term proportional to b µ , whenever compared to the one acting on an electric charge. *
On the Dirac monopole mass scale
Revista Brasileira de Física, 1986
It i s shown, by a semi- classical argument, t hat the Dirac charge quantization i s still valid in the (classical) Born- lnfeld electromagnetic theory. Then it is possible to calculate Dirac's monopole mass in the framework of this theory, which is not possible in Maxwell's theory. The existence of an upper Iirnit for the field intensities in this theory plays an important role in this proof.
2015
The Dirac Quantization Condition (DQC) for magnetic charges and its elegant Dirac-Wu-Yang (DWY) derivation based on U(1)em gauge theory predicts an electric / magnetic duality which to the best of our knowledge simply has never been observed in nature, as well as a charge quantization which is observed. The fact that this predicted duality has never been observed to our knowledge means as a matter of elementary logic that this DWY derivation (and the DQC itself) is either elegant but physically wrong, or elegant and correct but physically incomplete. This paper pinpoints a flawed assumption deeply-hidden in the DWY derivation that the south gauge field patch of the posited monopole charge differs from the north patch merely by an unobservable gauge-transformation. By correcting this assumption by defining an observable difference between the north and south patches, the DQC is made fully compatible with the non-observation of magnetic charges and its correct prediction of electric c...
Dirac magnetic monopoles as goldstone and higgs bosons in the origin of mass
International Journal of Theoretical Physics, 1994
Inspired by the conjectures of Dirac (1931), theorists have regularly investigated the problem of the magnetic monopole. In the years since Dirac, it has been speculated by Schwinger (1969) and Chang (1972) that quarks consist of electric and magnetic charges. In non-...