Noise-resilient universal quantum computing in the presence of anisotropic noise
Phys. Rev. A 113, 042609 – Published 10 April, 2026
DOI: https://doi.org/10.1103/8kst-zrry
Abstract
We propose a universal gate set for quantum computing that operates in the presence of decoherence without the overhead of active error correction. We show that a broad class of anisotropic system-bath couplings can be effectively decoupled by preparing an appropriate system-bath entangled initial state. The initially established entanglement serves as a resource to cancel out the dominant decoherence during evolution, enabling quantum computation to proceed as if the system were effective decoupled from its environment.
