Stability of Continuous Time Quantum Walks in Complex Networks
This study investigates how continuous-time quantum walks (CTQW) behave on different network structures—like complete or scale-free graphs—when subjected to various forms of decoherence. The main finding is that intrinsic decoherence best preserves quantum coherence, while quantum stochastic walk causes the fastest decay. Stability depends heavily on the network type and where the walker starts.