The laws of quantum mechanics allow for the distribution of a secret random key between
two parties. Here we analyse the security of a protocol for establishing a common secret key …

A quantum internet aims at harnessing networked quantum technologies, namely by
distributing bipartite entanglement between distant nodes. However, multipartite …

Quantum conference key agreement (CKA) enables key sharing among multiple trusted
users with information-theoretic security. Currently, the key rates of most quantum CKA …

Integrated photonics provides a route to both miniaturization of quantum key distribution
(QKD) devices and enhancing their performance. A key element for achieving discrete …

While the Rydberg-blockade regime provides the natural setting for creating W-type
entanglement with cold neutral atoms, it is demonstrated here that a scalable entanglement …

Motivated by the significantly improved scalability of optically trapped neutral-atom systems,
extensive efforts have been devoted in recent years to quantum-state engineering in …

Interconversions of W and Greenberger-Horne-Zeilinger states in various physical systems
have recently been attracting considerable attention. We address this problem in the fairly …

Using the quantum-brachistochrone formalism, we address the problem of finding the fastest
possible (time-optimal) deterministic conversion between W and Greenberger-Horne …

We investigate the possibilities for a deterministic conversion between two important types of
maximally entangled multiqubit states, namely, W and Greenberger-Horne-Zeilinger (GHZ) …

For thousands of years, code-makers and code-breakers have been fighting for supremacy.
With the recent rise of Internet of Things, cyber security is becoming a hot topic. Cyber …