Quantum computing is an emerging technology with potentially far-reaching implications for
national prosperity and security. Understanding the timeframes over which economic …

With the ever-growing concern for internet security, the field of quantum cryptography
emerges as a promising solution for enhancing the security of networking systems. In this …

We present a scalable star-shaped quantum-key-distribution (QKD) optical-fiber network.
We use wavelength-division demultiplexing (WDM) of broadband photon pairs to establish …

Quantum cryptography is a promising technology that achieves unconditional security,
which is essential to a wide range of sensitive applications. In contrast to optical fiber, the …

Photonic quantum technology requires precise, time-resolved identification of
photodetection events. In distributed quantum networks with spatially separated and drifting …

The operation of long-distance quantum networks requires photons to be synchronized and
must account for length variations of quantum channels. We demonstrate a 200 MHz clock …

The most important goal of quantum communication is to distribute the encryption key
between the transmitter and the receiver. The optimal situation in Quantum Key Distribution …

In this article, we propose and experimentally demonstrate a novel synchronization method
for quantum key distribution (QKD) systems. The method consists of maximizing the visibility …

The advent of quantum computing brings with it a significant threat to all public key
cryptographic security systems, like RSA-based and discreet log-based cryptographic …

Recent advances in the field of classical computing and quantum computing enable new
attacks on today's public-key cryptography. Therefore, an essential goal of cybersecurity …