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 …

Estimating the angular separation between two incoherent thermal sources is a challenging
task for direct imaging, especially at lengths within the diffraction limit. Moreover, detecting …

Quantum key distribution (QKD) offers future proof security based on fundamental laws of
physics. Long-distance QKD spanning regions such as the United Kingdom (UK) may …

Interorbital coupling refers to the possibility of exciting orbital states by otherwise orthogonal
noninteracting modes, a forbidden process in photonic lattices due to intrinsic propagation …

Thermal radiation played a pivotal role in the preliminary development of quantum physics
where it helped resolve the apparent incongruity of the ultraviolet catastrophe. In …

The analysis of link loss is one of the first and most important steps for the design of an
optical communication system. This is particularly vital in quantum communications systems …

Ghost imaging research has demonstrated that it is possible to reproduce an image of an
object that has not interacted with the imaging light. In this paper we describe theoretically …

Detecting the faint emission of a secondary source in the proximity of the much brighter one
has been the most severe obstacle for using direct imaging in searching for exoplanets …

We propose a postselecting parity-swap amplifier for Schrödinger cat states that does not
require the amplified state to be known a priori. The device is based on a previously …

We describe a technique whereby a coherent amplitude can be imprinted nonlocally on to a
beam of light with thermal statistics that has no phase information on average. We have …