A compact realization of a reversible quantum n-to-2n decoder

This paper presents a compact realization of quantum n-to-2 n decoder circuit, where n is the number of input bits. The proposed design of the quantum n-to-2 n decoder circuit shows that it is composed of the quantum 2-to-4 decoder circuit. We present a quantum 2-to-4 decoder circuit using quantum P...

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Bibliographic Details
Main Authors: Lisa, Nusrat Jahan, Babu, Hafiz Md Hasan
Format: Conference Proceeding
Language:English
Subjects:
Barium
Delay
Garbage Output
Logic gates
Photonics
Power measurement
Quantum Circuit
Quantum computing
Quantum Gate
Quantum Peres Gate
Robustness
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Summary:This paper presents a compact realization of quantum n-to-2 n decoder circuit, where n is the number of input bits. The proposed design of the quantum n-to-2 n decoder circuit shows that it is composed of the quantum 2-to-4 decoder circuit. We present a quantum 2-to-4 decoder circuit using quantum Peres gate and CNOT quantum gates. Finally, we show an algorithm to construct a compact n-to-2 n quantum decoder circuit. Our circuit performs better than the existing ones, e.g., the proposed 3-to-8 quantum decoder circuit improves 15.6% on the number of quantum gates, delay, area and power, 66.67% on garbage outputs and 25% on constant inputs than the Existing Design-2. We also simulate the proposed quantum decoder using Microwind DSCH 2.7 which shows the functional correctness of the circuit.
DOI:10.1109/ICEIEC.2013.6835461