Ye Cao

Nov 18, 2024 | laserfocusworld.com | Ye Cao

In the ever-evolving landscape of cybersecurity, quantum key distribution (QKD) promises unbreakable encryption for optical communications. This cutting-edge technology harnesses the enigmatic principles of quantum mechanics to create a fortress around our most sensitive data. As we delve into the world of QKD, we'll explore its purpose, inner workings, and the crucial role of infrared sensors for the quantum revolution.

May 2, 2024 | link.aps.org | Jiawei Li |Ye Cao |Ning Wu

We study few-magnon excitations in a finite-size spin-S chain with ferromagnetic nearest-neighbor (NN) interaction J>0 and antiferromagnetic next-nearest-neighbor (NNN) interaction J′<0, in the presence of the single-ion (SI) anisotropy D. We first reveal the condition for the emergence of zero-excitation-energy states.