A new online testing technique for reversible circuits

Any technology offering zero power dissipation must be reversible. A reversible circuit can envisaged as a cascade of gates only, such Toffoli gate, which has two components: k control bits and target bit (k-CNOT), ≥ 1. Analysing testability issues in is an important phenomenon. new online design-for-testability (DFT) technique for circuits proposed. The authors’ method yields less overhead terms quantum cost compared to the previous approaches.