The production of pairs of entangled photons simply by focusing a laser beam onto a crystal
with a nonlinear optical response was used to test quantum mechanics and to open new …

Free electron beams such as those employed in electron microscopes have evolved into
powerful tools to investigate photonic nanostructures with an unrivaled combination of …

It has long been assumed in physics that for information to travel between two parties in
empty space,“Alice” and “Bob,” physical particles have to travel between them. Here, using …

An introductory textbook for advanced students of physics, chemistry and computer science,
covering an area of physics that has lately witnessed rapid expansion. The topics treated …

Quantum cryptography allows one to distribute a secret key between two remote parties
using the fundamental principles of quantum mechanics. The well-known established …

The logic underlying the coherent nature of quantum information processing often deviates
from intuitive reasoning, leading to surprising effects. Counterfactual computation constitutes …

We analyse nonclassical resources in interference phenomena using generalized
noncontextuality inequalities and basis-independent coherence witnesses. We use recently …

One of the astounding consequences of quantum mechanics is that it allows the detection of
a target using an incident probe, with only a low probability of interaction of the probe and …

Intuition from our everyday lives gives rise to the belief that information exchanged between
remote parties is carried by physical particles. Surprisingly, in a recent theoretical study …

Distributed learning and multi-tier computing are the key ingredients to ensure ultra-reliable
and low-latency communication (URLLC) in 6G networks. The distinct transition from …