Quantum Multiplier Based on Exponent Adder. (arXiv:2309.10204v1 [quant-ph])

Quantum multiplication is a fundamental operation in quantum computing. Most
existing quantum multipliers require $O(n)$ qubits to multiply two $n$-bit
integer numbers, limiting their applicability to multiply large integer numbers
using near-term quantum computers. This paper proposes a new approach, the
Quantum Multiplier Based on Exponent Adder (QMbead), which addresses this issue
by requiring only $log_2(n)$ qubits to multiply two $n$-bit integer numbers.
QMbead uses a so-called exponent encoding to represent the two multiplicands as
two superposition states, respectively, and …

adder addresses computers computing integer issue large near numbers quantum quantum computers quantum computing qubits