Concerted efforts are underway to establish an infrastructure for a global quantum Internet to
realise a spectrum of quantum technologies. This will enable more precise sensors, secure …

Communication security has to evolve to a higher plane in the face of the threat from the
massive computing power of the emerging quantum computers. Quantum secure direct …

Quantum secure direct communication (QSDC) leverages quantum states to transmit
information securely and reliably over a noisy, lossy, and wiretapped quantum channel. It …

The phenomenon of entanglement marks one of the furthest departures from classical
physics and is indispensable for quantum information processing. Despite its fundamental …

Entanglement distribution via photons over long distances enables many applications,
including quantum key distribution, which provides unprecedented privacy. The inevitable …

The emergence of quantum mechanics and general relativity has transformed our
understanding of the natural world significantly. However, integrating these two theories …

Advances in quantum technologies are giving rise to a revolution in the way fundamental
physics questions are explored at the empirical level. At the same time, they are the seeds …

Underwater quantum communication has recently been explored using polarization and
orbital angular momentum (OAM). Here, we show that spatially structured modes, eg, a …

The photonic temporal degree of freedom is one of the most promising platforms for
quantum communication over fiber networks and free-space channels. In particular, time-bin …

The large number of spatial modes supported by standard multimode fibers is a promising
platform for boosting the channel capacity of quantum and classical communications by …