Can Less Accurate Be More Accurate? Surpassing Exact Multiplier with Approximate Design on NISQ Quantum Computers
Sungyoun Hwang, Hyoju Seo, Yongtae Kim · 2025
This paper presents a configurable approximate quantum multiplier that integrates approximate and exact controlled adders with a truncation scheme to balance accuracy and circuit complexity in noisy quantum environments. It achieves significant enhancements in error metrics over an exact multiplier, demonstrating its potential for noise-resilient quantum computing in noisy quantum devices.