Single-photon detectors (SPDs) are the most sensitive instruments for light detection. In the
near-infrared range, SPDs based on III–V compound semiconductor avalanche photodiodes …

Photonic quantum technologies promise a revolution of the world of information processing,
from simulation and computing to communication and sensing, thanks to the many …

It has long been assumed in physics that for information to travel between two parties in
empty space,“Alice” and “Bob,” physical particles have to travel between them. Here, using …

Abstract The Greenberger-Horne-Zeilinger (GHZ) entanglement, originally introduced to
uncover the extreme violation of local realism against quantum mechanics, is an important …

Quantum Cryptography: Key Distribution and Beyond Page 1 Quantum Cryptography: Key
Distribution and Beyond Akshata Shenoy-Hejamadi 1, Anirban Pathak 2 & Srikanth …

Intuition from our everyday lives gives rise to the belief that information exchanged between
remote parties is carried by physical particles. Surprisingly, in a recent theoretical study …

Two protocols of quantum key agreement (QKA) that solely use Bell state and Bell
measurement are proposed. The first protocol of QKA proposed here is designed for two …

Distributed learning and multi-tier computing are the key ingredients to ensure ultra-reliable
and low-latency communication (URLLC) in 6G networks. The distinct transition from …

Integrating the full-duplex capability with quantum communication potentially equips
emerging wireless networks with a quantum layer of security for the stringent communication …

Based on the fundamental concept of quantum counterfactuality, we propose a protocol to
achieve quantum private database queries, which is a theoretical study of how …