N-photon correlations from non-identical strongly coupled quantum emitters Elnaz Darsheshdar, S. Mostafa Moniri and Fardin Kheirandish Eur. Phys. J. Plus, 137 10 (2022) 1127 Published online: 13 October 2022 DOI: 10.1140/epjp/s13360-022-03341-y