8 papers
Entangled ripples and twists of light: Radial and azimuthal Laguerre-Gaussian mode entanglement
Natalia Herrera Valencia, Vatshal Srivastav, Saroch Leedumrongwatthanakun +2
It is well known that photons can carry a spatial structure akin to a "twisted" or "rippled" wavefront. Such structured light fields have sparked significant interest in both class…
A general framework for multimode Gaussian quantum optics and photo-detection: application to Hong-Ou-Mandel interference with filtered heralded single photon sources
Oliver F. Thomas, Will McCutcheon, Dara P. S. McCutcheon
The challenging requirements of large scale quantum information processing using parametric heralded single photon sources involves maximising the interference visibility whilst ma…
Exchange-Free Computation on an Unknown Qubit at a Distance
Hatim Salih, Jonte R. Hance, Will McCutcheon +2
We present a way of directly manipulating an arbitrary qubit, without the exchange of any particles. This includes as an application the exchange-free preparation of an arbitrary q…
High-Dimensional Pixel Entanglement: Efficient Generation and Certification
Natalia Herrera Valencia, Vatshal Srivastav, Matej Pivoluska +4
Photons offer the potential to carry large amounts of information in their spectral, spatial, and polarisation degrees of freedom. While state-of-the-art classical communication sy…
Semi-Device-Independent Random Number Generation with Flexible Assumptions
Matej Pivoluska, Martin Plesch, Máté Farkas +6
Our ability to trust that a random number is truly random is essential for fields as diverse as cryptography and fundamental tests of quantum mechanics. Existing solutions both com…
Unscrambling Entanglement through a Complex Medium
Natalia Herrera Valencia, Suraj Goel, Will McCutcheon +2
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-dimens…