Frequency variation for in vacuo photon propagation in the Standard-Model Extension

Helayël-Neto, J. A.; Spallicci, A.

doi:10.1140/epjc/s10052-019-7105-9

Cited by 13 publications

(9 citation statements)

References 25 publications

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“…Incidentally, we shall see that the leading term is k AF 0 which violates CPT. Indicating by the symbol * the dual field, the photon energy-momentum density tensor θ α τ [Jm −3 ] is [27,35]…”

Section: Non-conservationmentioning

confidence: 99%

“…The latter estimate is close to the Heisenberg limit on the smallest measurable energy or mass or length for a given time, t, set equal to the age of the universe. A full table of values was shown in [35]…”

Section: Non-conservationmentioning

confidence: 99%

“…An estimate of the energy change that light would undergo was given [35]. The wave-particle correspondence, even for a single photon [66], leads us to consider that the light-wave energy non-conservation is translated into photon energy variation and thereby into a red or a blue shift.…”

Section: Origin Of the Non-conservationmentioning

confidence: 99%

“…In Eq. (17), we may neglect the tensorial perturbation in the frame of Super-Symmetry (SuSy) since it is less likely to condense than the CFJ vectorial perturbation [35,68,69]. Independently of SuSy, the k F term can be neglected since it is quadratic in the field strength and in frequency.…”

Section: Sizing the Lsv Frequency Shiftmentioning

confidence: 99%

“…Also in the SME, the photon energy-momentum tensor is not conserved in vacuum, and most remarkably, includes terms depending on constant LSV and EM fields [27]. Furthermore, we have determined a non-expansion related frequency shift (towards the red or the blue) z LSV [35].…”

Section: Introductionmentioning

confidence: 98%

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Cosmology and the massive photon frequency shift in the Standard-Model Extension

et al. 2021

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The total red shift z might be recast as a combination of the expansion red shift and a static shift due to the energy–momentum tensor non-conservation of a photon propagating through Electro-Magnetic (EM) fields. If massive, the photon may be described by the de Broglie–Proca (dBP) theory which satisfies the Lorentz(-Poincaré) Symmetry (LoSy) but not gauge-invariance. The latter is regained in the Standard-Model Extension (SME), associated with LoSy Violation (LSV) that naturally dresses photons of a mass. The non-conservation stems from the vacuum expectation value of the vector and tensor LSV fields. The final colour (red or blue) and size of the static shift depend on the orientations and strength of the LSV and EM multiple fields encountered along the path of the photon. Turning to cosmology, for a zero $$\Omega _{\Lambda }$$ Ω Λ energy density, the discrepancy between luminosity and red shift distances of SNeIa disappears thanks to the recasting of z. Massive photons induce an effective dark energy acting ‘optically’ but not dynamically.

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Section: Non-conservationmentioning

confidence: 99%

Section: Non-conservationmentioning

confidence: 99%

Section: Origin Of the Non-conservationmentioning

confidence: 99%

Section: Sizing the Lsv Frequency Shiftmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Cosmology and the massive photon frequency shift in the Standard-Model Extension

et al. 2021

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The axion-photon mixing in non-linear electrodynamic scenarios

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Ospedal

Neves

et al. 2022

J. High Energ. Phys.

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In this contribution, we re-assess some aspects of axionic electrodynamics by coupling non-linear electromagnetic effects to axion physics. We present a number of motivations to justify the coupling of the axion to the photon in terms of a general non-linear extension of the electromagnetic sector. Our emphasis in the paper relies on the investigation of the constitutive permittivity and permeability tensors, for which the axion contributes by introducing dependence on the frequency and wave vector of the propagating radiation. Also, we point out how the axion mass and the axion-photon-photon coupling constant contribute to a dispersive behavior of the electromagnetic waves, in contrast to what happens in the case of non-linear extensions, when effective refractive indices appear which depend only on the direction of the propagation with respect to the external fields. The axion changes this picture by yielding refractive indices with dependence on the wavelength. We apply our results to the special case of the (non-birefringent) Born-Infeld Electrodynamics and we show that it becomes birefringent whenever the axion is coupled. The paper is supplemented by an appendix, where we follow our own path to approach the recent discussion on a controversy in the definition of the Poynting vector of axionic electrodynamics.

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