Since its discovery, quantum entanglement has challenged some of the best established
views of the world: locality and reality. Quantum technologies promise to revolutionize …

Single-molecule magnets (SMMs) have been proposed for applications in high-density
storage, quantum simulation, quantum computing and spintronics applications. Bulk …

Structured light has become topical of late, where controlling light in all its degrees of
freedom has offered novel states of light long predicted, enhanced functionality in …

Multiphoton interference reveals strictly nonclassical phenomena. Its applications range
from fundamental tests of quantum mechanics to photonic quantum information processing …

Entangled photon pairs are a critical resource in quantum communication protocols ranging
from quantum key distribution to teleportation. The current workhorse technique for …

The optical fibre is an essential tool for our communication infrastructure since it is the main
transmission channel for optical communications. The latest major advance in optical fibre …

The transverse spatial effects observed in photon pairs produced by parametric down-
conversion provide a robust and fertile testing ground for studies of quantum mechanics …

We present a protocol for large-alphabet quantum key distribution (QKD) using energy-time
entangled biphotons. Binned, high-resolution timing measurements are used to generate a …

We present a proof of principle demonstration of a quantum key distribution scheme in
higher-order d-dimensional alphabets using spatial degrees of freedom of photons. Our …

Multiplexing is a strategy to augment the transmission capacity of a communication system. It
consists of combining multiple signals over the same data channel and it has been very …