Worldwide, enormous efforts are directed toward the development of the so‐called quantum
internet. Turning this long‐sought‐after dream into reality is a great challenge that will …

Increasing incidents of cyber attacks and evolution of quantum computing poses challenges
to secure existing information and communication technologies infrastructure. In recent …

Quantum communications is the art of exchanging and manipulating information beyond the
capabilities of the conventional technologies using the laws of quantum mechanics. With …

The field of propagating quantum microwaves is a relatively new area of research that is
receiving increased attention due to its promising technological applications, both in …

High-dimensional quantum key distribution (QKD) allows achievement of information-
theoretic secure communications, providing high key-generation rates, which cannot, in …

We present a 2.5 GHz quantum key distribution setup with the emphasis on a simple
experimental realization. It features a three-state time-bin protocol based on a pulsed diode …

Silicon-based polarization-encoding quantum key distribution (QKD) has been extensively
studied due to its advantageous characteristics of its low cost and robustness. However …

Quantum key distribution (QKD) relies on quantum communication to allow distant parties to
share a secure cryptographic key. Widespread adoption of QKD in current …

We propose Qubit4Sync, a synchronization method for quantum-key-distribution (QKD)
setups, based on the same qubits exchanged during the protocol and without requiring …

We present and characterize a source for a 5 GHz clocked polarization-based simplified
BB84 protocol. Secret keys are distributed over 151.5 km of standard telecom fiber at a rate …