Explicit construction of single input–single output logic gates from three soliton solution of Manakov system

• We realize single input logic gates using energy sharing collision of solitons.
• We clearly demonstrate the construction of COPY gate, NOT gate and ONE gate.
• Logic gates are realized just from three soliton collision of Manakov system.
• Distinct from the earlier studies which require separate collisions of four solitons.

We construct single input logic gates using the energy sharing collisions of a minimal number of (three) bright optical solitons associated with the three soliton solution of the integrable Manakov system. As computation requires state changes to represent binary logic, here we make use of the state change of a particular soliton during its sequential collision with other two solitons for constructing single input gates. As a consequence, we clearly demonstrate the construction of various one-input logic gates such as COPY gate, NOT gate and ONE gate using energy sharing three soliton collision of Manakov system. This type of realization of logic gates just from a three soliton collision (pair-wise interaction) is clearly distinct from the earlier studies which require separate collisions of four solitons.