“…The interaction of spatial solitons has attracted increasing attention in the last few years [1][2][3][4][5][6][7][8][9][10], as it has the potential for building logical operators [11] and in all-optical switching [12,13]. Thus far, many kinds of optical spatial solitons have been reported, such as steady-state spatial screening solitons [14], screening-photovoltaic spatial solitons [15], photovoltaic lattice solitons (LSs) [16], multi-peaked gap solitons [17], two-dimensional gap-solitons [18], and rotary dissipative spatial solitons [19].…”