Design of Master Slave flip flop in Quantum Dot Cellular Automata (QCA)

Quantum Dot Cellular Automata or QCA is one of the promising quantum computational platforms in the field of nanotechnology to overcome the constraints of transistor based CMOS circuits. In this paper Master Slave flip-flop has been designed using SR flip-flop in the field of quantum dot cellular automata which is normally used in digital circuit to overcome the limitations of JK flip-flop i.e. the race-around conditions. According to design of the circuit, kink energy, complexities of the design have been calculated to find out the robustness of the circuit. The relation between the distances of two nearest quantum dots, temperature effect and the number of cells allowed in one clocking zone have also been derived in this work.