Journal
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
Volume 60, Issue 8, Pages 2823-2835Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-021-04864-3
Keywords
Quantum gates; Quantum circuits; Quantum computing; Quantum algorithms; Clifford plus T
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This study proposes a QFA circuit for quantum computing hardware, optimized to reduce T-count using a single CCNOT (Toffoli) gate. It also focuses on implementing a quantum integer multiplication circuit using the QFA to achieve better T-count savings than existing counterparts.
Quantum circuits for performing an arithmetic operation are necessary for the implementation of quantum computing peripherals. An effective quantum circuit can be developed using a minimum amount of Clifford + T gates, as the implementation of Clifford + T quantum gates is more expensive than the other quantum gates. A quantum full adder (QFA) circuit for quantum computing hardware is proposed in this work. The proposed QFA circuit is optimized for T-count using a single CCNOT (Toffoli) gate. This work also focuses on implementing a quantum integer multiplication circuit using the proposed QFA to achieve better T-count savings than the existing counterparts.
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