Quantum coherence and quantum correlations are of fundamental and practical significance
for the development of quantum mechanics. They are also cornerstones of quantum …

Photons are often referred to as flying quantum bits, a phrase that emphasizes both their
quantum character and their ability to carry quantum information between two distant points …

Optical aberrations place fundamental limits on the achievable resolution with focusing and
imaging. In the context of structured light, optical imperfections and misalignments and …

High-dimensional entanglement with spatial modes of light promises increased security and
information capacity over quantum channels. Unfortunately, entanglement decays due to …

The transfer of quantum information through a noisy environment is a central challenge in
the fields of quantum communication, imaging and nanophotonics. In particular, high …

Entanglement is nowadays considered as a key quantity for the understanding of
correlations, transport properties and phase transitions in composite quantum systems, and …

Open quantum systems is the study of quantum dynamics of the system of interest, taking
into account the effects of the ambient environment. It is ubiquitous in the sense that any …

The estimation of the decoherence process of an open quantum system is of both theoretical
significance and experimental appealing. Practically, the decoherence can be easily …

We consider the propagation of two photonic qubits, initially maximally entangled in their
orbital angular momenta (OAM), across a weakly turbulent atmosphere. By introducing the …

In quantum mechanics, quantum coherence of a state relative to a quantum measurement
can be identified with the quantumness that has to be destroyed by the measurement. In …