2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/222752In this work we investigate that whether one can construct single and two qubit gates for arbitrary quantum states from the principle of no signalling. We considered the problem for Pauli gates, Hadamard gate, C-Not gate.14 pages, Accepted in Romanian journal of PhysicsQuantum Physicstext