Dark monopoles and SL(2, ℤ) duality

Terning, John; Verhaaren, Christopher B.

doi:10.1007/jhep12(2018)123

Cited by 27 publications

(53 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The addition of the K α term introduces magnetic monopoles. The theoretical underpinnings for milli-magnetic monopoles, in the context of kinetic mixings, were discussed in [54], and put on a firmer theoretical foundation later in [80]. Among the theoretical subtleties, in incorporating magnetic monopoles directly in a quantum field theory, is the fact that it is not possible to write a local, Lorentz invariant Lagrangian containing both electric and magnetic charges [81][82][83][84].…”

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

“…In this formulation, one of the gauge potentials, A α , couples locally to the electric current J α , while the other,Ã α , couples to the magnetic current K α . The Lagrangian density takes the form [80,83,85]…”

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

“…n α is an arbitrary four vector, corresponding to the direction of the Dirac string in certain gauge choices. The presence of n α , projects out two, on-shell photon polarizations, breaking manifest Lorentz-invariance [80,83,85]. It has been argued that physical observables of the theory are independent of n α [84].…”

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

“…Let us now understand how MMMs may specifically be included, in this framework, in the context of kinetic mixing [50]. For this, consider the Lagrangian density [80] incorporating kinetic mixing with a dark sector (whose low-energy states are all Standard Model gauge singlets; labelled by subscript 'D')…”

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

“…(3.6). The mass term for A Dµ breaks the SO(2) symmetry of the kinetic terms and is uniquely responsible for MMMs [80].…”

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

See 4 more Smart Citations

Continuous gravitational waves and magnetic monopole signatures from single neutron stars

2020

View full text Add to dashboard Cite

Future observations of continuous gravitational waves from single neutron stars, apart from their monumental astrophysical significance, could also shed light on fundamental physics and exotic particle states. One such avenue is based on the fact that magnetic fields cause deformations of a neutron star, which results in a magnetic-field-induced quadrupole ellipticity. If the magnetic and rotation axes are different, this quadrupole ellipticity may generate continuous gravitational waves which may last decades, and may be observable in current or future detectors. Light, milli-magnetic monopoles, if they exist, could be pair-produced non-perturbatively in the extreme magnetic fields of neutron stars, such as magnetars. This non-perturbative production furnishes a new, direct dissipative mechanism for the neutron star magnetic fields. Through their consequent effect on the magnetic-fieldinduced quadrupole ellipticity, they may then potentially leave imprints in the early stage continuous gravitational wave emissions. We speculate on this possibility in the present study, by considering some of the relevant physics and taking a very simplified toy model of a magnetar as the prototypical system. Preliminary indications are that new-born millisecond magnetars could be promising candidates to look for such imprints. Deviations from conventional evolution, and comparatively abrupt features in the early stage gravitational waveforms, distinct from other astrophysical contributions, could be distinguishable signatures for these exotic monopole states.

show abstract

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

“…(3.6). The mass term for A Dµ breaks the SO(2) symmetry of the kinetic terms and is uniquely responsible for MMMs [80].…”

Section: Milli-magnetic Monopoles and Theoretical Foundationsmentioning

confidence: 99%

See 3 more Smart Citations

Continuous gravitational waves and magnetic monopole signatures from single neutron stars

2020

View full text Add to dashboard Cite

show abstract

Resolving the Weinberg paradox with topology

Terning

Verhaaren

2019

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

Long ago Weinberg showed, from first principles, that the amplitude for a single photon exchange between an electric current and a magnetic current violates Lorentz invariance. The obvious conclusion at the time was that monopoles were not allowed in quantum field theory. Since the discovery of topological monopoles there has thus been a paradox. On the one hand, topological monopoles are constructed in Lorentz invariant quantum field theories, while on the other hand, the low-energy effective theory for such monopoles will reproduce Weinberg's result. We examine a toy model where both electric and magnetic charges are perturbatively coupled and show how soft-photon resummation for hard scattering exponentiates the Lorentz violating pieces to a phase that is the covariant form of the Aharonov-Bohm phase due to the Dirac string. The modulus of the scattering amplitudes (and hence observables) are Lorentz invariant, and when Dirac charge quantization is imposed the amplitude itself is also Lorentz invariant. For closed paths there is a topological component of the phase that relates to aspects of 4D topological quantum field theory. arXiv:1809.05102v2 [hep-th]

show abstract

Milli-magnetic monopole dark matter and the survival of galactic magnetic fields

Graesser

Shoemaker

Tapia-Arellano

2022

J. High Energ. Phys.

View full text Add to dashboard Cite

Dark sectors with Abelian gauge symmetries can interact with ordinary matter via kinetic mixing. In such scenarios, magnetic monopoles of a broken dark U(1) will appear in our sector as confined milli-magnetically charged objects under ordinary electromagnetism. Halo ellipticity constraints are shown to significantly bound the strength of dark magnetic Coulomb monopole interactions. The bound magnetic monopole ground state, which in vacuum is stable and has no magnetic charge or moment, is shown to become quantum mechanically unstable in the presence of an external, ordinary magnetic field. If these states contribute sizably to the local dark matter density, they extract significant energy from the galactic magnetic field. We revise and extend this “Parker Bound” on galactic magnetic energy loss to milli-magnetic monopoles which leads to the strongest existing constraints on these states, satisfying our halo ellipticity bounds, over a wide range of magnetic monopole masses.

show abstract

Dark monopoles and SL(2, ℤ) duality

Cited by 27 publications

References 45 publications

Continuous gravitational waves and magnetic monopole signatures from single neutron stars

Continuous gravitational waves and magnetic monopole signatures from single neutron stars

Resolving the Weinberg paradox with topology

Milli-magnetic monopole dark matter and the survival of galactic magnetic fields

Contact Info

Product

Resources

About