Tunable all-optical gates in 2D discrete cavity solitons with local defect Reza Kheradmand, Keivan Mahmoud Aghdami and Bahareh Haddadpour Khiaban Eur. Phys. J. D, 69 12 (2015) 274 Published online: 10 December 2015 DOI: 10.1140/epjd/e2015-60373-3