Results 31 to 40 of about 105,729 (287)
Radiation from charged particles due to explicit symmetry breaking in a gravitational field [PDF]
, 2017 The paradox of a free falling radiating charged particle in a gravitational field is a well-known fascinating conceptual challenge that involves classical electrodynamics and general relativity (GR).
F. Tamburini, M. Laurentis, I. Licata
semanticscholar +1 more source
Comment on "electromagnetic radiation under explicit symmetry breaking". [PDF]
Physical Review Letters, 2015 Recently published paper [PRL 114, 147701 (2015)] contains several misleading statements and misinterpretations of known facts. The main massage of the paper [PRL 114, 147701 (2015)] is as follows: "We have shown that explicit symmetry breaking in the ...
C. Simovski +3 more
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Gravity with Explicit Diffeomorphism Breaking [PDF]
Symmetry, 2021 Modified theories of gravity that explicitly break diffeomorphism invariance have been used for over a decade to explore open issues related to quantum gravity, dark energy, and dark matter.
R. Bluhm, Yumu Yang
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Helical symmetry breaking and quantum anomaly in massive Dirac fermions [PDF]
Physical review B, 2021 Helical symmetry of massive Dirac fermions is broken explicitly in the presence of electric and magnetic fields. Here we present two equations for the divergence of helical and axial vector currents following the Jackiw-Johnson approach to the anomaly of
Huan-Wen Wang, Bo Fu, S. Shen
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Spontaneous chiral symmetry breaking in holographic soft wall models [PDF]
Physical Review D, 2021 We investigate non-linear extensions of the holographic soft wall model proposed by Karch, Katz, Son and Stephanov [1] including non-minimal couplings in the five-dimensional action.
Alfonso Ballon-Bayona +2 more
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Dark Energy, QCD Axion, and Trans-Planckian-Inflaton Decay Constant
Universe, 2017 Pseudoscalars appear frequently in particle spectra. They can be light if they appear as pseudo-Goldstone bosons from some spontaneously broken global symmetries with the decay constant f.
Jihn E. Kim
doaj +1 more source
Gravity with explicit spacetime symmetry breaking and the standard model extension [PDF]
Physical Review D, 2019 The Standard-Model Extension (SME) is the general phenomenological framework used to investigate Lorentz violation at the level of effective field theory.
R. Bluhm, H. Bossi, Yuewei Wen
semanticscholar +1 more source
Cosmology of the Twin Higgs without explicit ℤ2 breaking
Journal of High Energy Physics, 2021 The cosmology of the Twin Higgs requires the breaking of the ℤ2 symmetry, but it is still an open question whether this breaking needs to be explicit.
Hugues Beauchesne, Yevgeny Kats
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Gauged Peccei-Quinn symmetry — A case of simultaneous breaking of SUSY and PQ symmetry
Journal of High Energy Physics, 2018 Recently, a simple prescription to embed the global Peccei-Quinn (PQ) symmetry into a gauged U(1) symmetry has been proposed. There, explicit breaking of the global PQ symmetry expected in quantum gravity are highly suppressed due to the gauged PQ ...
Hajime Fukuda +3 more
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Non-conformal entanglement entropy
Journal of High Energy Physics, 2018 We explore the behaviour of renormalized entanglement entropy in a variety of holographic models: non-conformal branes; the Witten model for QCD; UV conformal RG flows driven by explicit and spontaneous symmetry breaking and Schrödinger geometries ...
Marika Taylor, William Woodhead
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