Entanglement Assisted Transport of Two Walkers in Noisy Quantum Networks

Entanglement Assisted Transport of Two Walkers in Noisy Quantum Networks

Blog Article

Understanding the transport mechanisms and properties of complex networks is fundamental for the comprehension of a vast class of phenomena, from state transfer on a spin network to light-harvesting in photosynthetic complexes.It UPS Components has been theoretically and experimentally demonstrated that noise can enhance transport when the system parameters are properly tuned, an effect known as noise-assisted transport (NAT).In this work we investigate the role of initial entanglement in the transfer efficiency of two walkers in a noisy network.

By using the formalism of quantum walks, we define a range of small dephasing noise where initial site-entanglement provides transport enhancement and outperforms the NAT effect.Furthermore, we show two specific scenarios where entanglement-assisted transport can open faster Reloading channels for slow walkers and avoid a broken link in a communication line.These findings may be of potential interest for quantum technologies.