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Quantum full adder and subtractor

Quantum full adder and subtractor

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The designs of quantum full adder (QFA) and quantum full subtractor (QFS) are investigated. First, the 1-bit QFA and 1-bit QFS are designed according to the classical truth tables. The adder and subtractor for two n-bits numbers are then separately constructed from n 1-bit QFAs and QFSs. The number of elementary quantum gates to accomplish the design of n-bits adder and subtractor are 4n and 8n, respectively.

References

    1. 1)
      • Quantum computation and quantum information
    2. 2)
      • Ultimate zero and one: computing at the quantum frontier
    3. 3)
      • An unsharp logic from quantum computation
    4. 4)
      • Quantum networks for elementary arithmetic operations
    5. 5)
      • Quantum computing-Pt 2
    6. 6)
      • Digital design
    7. 7)
      • Basic VLSI design
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