Professor Patrick Dorey's Outputs (2)

Perturbations of Q-balls: from spectral structure to radiation pressure (2024)
Journal Article
Ciurla, D., Dorey, P., Romańczukiewicz, T., & Shnir, Y. (2024). Perturbations of Q-balls: from spectral structure to radiation pressure. Journal of High Energy Physics, 2024(7), Article 196. https://doi.org/10.1007/jhep07%282024%29196

We investigate Q-balls in a 1+1 dimensional complex scalar field theory. We find that the relaxation of a squashed Q-ball is dominated by the decay of a normal mode through nonlinear coupling to scattering modes and a long-lasting quasi-normal mode.... Read More about Perturbations of Q-balls: from spectral structure to radiation pressure.

Oscillons in gapless theories (2024)
Journal Article
Dorey, P., Romańczukiewicz, T., Shnir, Y., & Wereszczyński, A. (2024). Oscillons in gapless theories. Physical Review D, 109(8), Article 085017. https://doi.org/10.1103/physrevd.109.085017

We show that large scale oscillons, i.e., quasiperiodic, long-living particlelike solutions, may exist in massless theories, too. Their existence is explained using an effective (smeared) mass threshold which takes into account nonlinear (finite) per... Read More about Oscillons in gapless theories.