TY - JOUR AU - Blas, D. AU - Caputo, A. AU - Ivanov, M. M. AU - Sberna, L. PY - 2020 DA - 2020// TI - No chiral light bending by clumps of axion-like particles T2 - Phys. Dark Universe JO - Physics of the Dark Universe SP - 100428 EP - 4pp VL - 27 PB - Elsevier AB - We study the propagation of light in the presence of a parity-violating coupling between photons and axion-like particles (ALPs). Naively, this interaction could lead to a split of light rays into two separate beams of different polarization chirality and with different refraction angles. However, by using the eikonal method we explicitly show that this is not the case and that ALP clumps do not produce any spatial birefringence. This happens due to non-trivial variations of the photon's frequency and wavevector, which absorb time-derivatives and gradients of the ALP field. We argue that these variations represent a new way to probe the ALP-photon coupling with precision frequency measurements. SN - 2212-6864 UR - https://arxiv.org/abs/1910.06128 UR - https://doi.org/10.1016/j.dark.2019.100428 DO - 10.1016/j.dark.2019.100428 LA - English N1 - WOS:000515668000021 ID - Blas_etal2020 ER -