A Novel Design of Quantum 3:8 Decoder Circuit using Reversible Logic for Improvement in Key Quantum Circuit Design Parameters

quantum computing is the emerging technology in the new era and is very promising, not only quantum computers substantially accelerate what classical computers are able to do nowadays but they are also capable of providing answers that classical computers never could. Using reversible logic in designing quantum circuits has many advantages such as lowering power consumption, reducing heat dissemination, and decreasing quantum cost, ancilla inputs, and garbage outputs that lead to even higher performance in quantum computers. Decoders have many utilizations in digital circuits any function in form of SOP or POS can be implemented using decoders, counters, and ROMs have also used decoder modules in their designs in this article two novel designs for 2:4 and 3:8 decoder have been proposed that has been proved to have less quantum cost, unused outputs, and ancilla inputs when it comes to comparison with recent researches that have been done concerning this field.