https://doi.org/10.1140/epjp/s13360-025-06262-8
Regular Article
Scalar beam propagation in a Lorentz-violating background
1
Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Av. Ferrocarril San Rafael Atlixco, Núm. 186, Col. Leyes de Reforma 1 A Sección, Alcaldía Iztapalapa, 09310, Ciudad de México, Mexico
2
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
3
Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, 01000, Ciudad de México, Mexico
Received:
17
February
2025
Accepted:
24
March
2025
Published online:
22
April
2025
We investigate the propagation characteristics of apertured Gaussian and Bessel beams in a nontrivial spacetime background characterized by a constant 4-vector. Such 4-vector introduces a privileged direction in spacetime, thus breaking Lorentz invariance. The scalar beam is modeled by a massless scalar field theory, which corresponds to the scalar sector of the standard model extension. Assuming an axially symmetric Lorentz-violating background, we employ the Green’s function method to investigate the propagated field for particular input fields. We investigate the impact of the Lorentz-violating parameter upon the intensity and focalization of the beams. Finally, we discuss possible realizations in optically transparent multiferroic materials.
© The Author(s) 2025
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