288 citations · 1.1k across the 41 of their papers we have counts for
43 papers
Quantum skyrmion parallelism via metasurface-tailored high-dimensional entanglement
Pedro Ornelas, Ramona Bedford, Fazilah Nothlawala +6
Quantum skyrmions are topological structures that have garnered significant interest due to their demonstrated robustness and versatility across diverse optical platforms. However,…
Tunable spatio-spectral Target Skyrmions and topological multiplexing
Pedro Ornelas, Niladri Modak, Oussama Korichi +3
Optical Skyrmions have recently garnered much interest providing a potential avenue for high capacity, robust topological information transfer. Typically, Skyrmions are derived fro…
Orthogonalised Self-Guided Quantum Tomography: Insights from Single-Pixel Imaging
Kiki Dekkers, Alice Ruget, Fazilah Nothlawala +6
We introduce the concept of self-guided imaging (SGI) as a linear analogue of self-guided quantum tomography (SGQT). We show that SGI is mathematically equivalent to single-pixel i…
Reconfigurable circuit for mode tunable topological quantum structured light
Pedro Ornelas, Tatjana Kleine, André G. de Oliveira +3
Structured light in the quantum regime has garnered considerable attention due to the opportunities it offers when mixing light's internal degrees of freedom, for high-dimensional…
Topological robustness of orbital angular momentum entanglement in stochastic channels
Tatjana Kleine, Pedro Ornelas, Cade Peters +5
Orbital angular momentum (OAM) entanglement gives access to multiple qubit and high dimensional Hilbert spaces, but is unfortunately susceptible to disturbance, decaying in real-wo…
Remote engineering of particle-like topologies to visualise entanglement dynamics
Fazilah Nothlawala, Bereneice Sephton, Pedro Ornelas +6
Skyrmions are a particle-like topology with a quantised skyrmion number, realised across condensed matter and photonic platforms alike. In quantum photonics, they constitute an eme…
Deep diffractive optical neural networks for detecting Skyrmionic topologies of light
Hadrian Bezuidenhout, Cade Peters, Ram Kumar +2
Optical Skyrmions are topological forms of structured light with the potential of an infinite encoding alphabet that is immune to disturbance. This attractive prospect is hindered…
Towards reconstructing quantum structured light on a quantum computer
Mwezi Koni, Shawal Kassim, Paola C. Obando +2
We introduce a variational quantum computing approach for quantum state reconstruction within a discretized logical framework, using experimental measurement data as input. By mapp…
Unveiling the link between quantum ghost imaging and Grover's quantum searching algorithm
Neelan Gounden, Fazilah Nothlawala, Paola C. Obando +3
Photonic quantum technologies have become pivotal in the implementation of communication, imaging and computing modalities. Among these applications, quantum ghost imaging (GI) exp…
Orbital angular momentum of entangled photons as a probe for relativistic effects
Fazilah Nothlawala, Kiki Dekkers, Moslem Mahdavifar +3
Orbital angular momentum (OAM) as both classical and quantum states of light has proven essential in numerous applications, from high-capacity information transfer to enhanced prec…
On-chip photon entanglement-assisted topology loading and transfer
Haoqi Zhao, Yichi Zhang, Isaac Nape +6
Topological protection offers a robust solution to the challenges of noise and loss in physical systems. By integrating topological physics into optics, loading and encoding quantu…
Dual-wavelength quantum skyrmions from liquid crystal topological defect
Mwezi Koni, Fazilah Nothlawala, Vagharshak Hakobyan +3
We propose a spin-orbit strategy for generating dual-wavelength quantum skyrmions, realized either as entangled photon pairs at dual wavelengths or as heralded single-photon states…
Wavelength-adaptive spin-orbit orbital angular momentum management in three-wave mixing
Kiki Dekkers, Mwezi Koni, Vagharshak Hakobyan +5
Here we propose the use of an adjustable liquid crystal spin-orbit device to shape bi-colour structured light to create bimodal states. We demonstrate the proof-of-principle for tw…
The topological spectrum of high dimensional quantum states
Robert de Mello Koch, Pedro Ornelas, Neelan Gounden +3
Topology has emerged as a fundamental property of many systems, manifesting in cosmology, condensed matter, high-energy physics and waves. Despite the rich textures, the topology h…
Enhanced fidelity in nonlinear structured light by virtual light-based apertures
Sachleen Singh, Isaac Nape, Andrew Forbes
Tailoring the degrees of freedom (DoF) of light for a desired purpose, so-called structured light, has delivered numerous advances over the past decade, ranging from communications…
Tailoring light to create invariant modal spectra through complex channels
Cade Peters, Isaac Nape, Andrew Forbes
Light's spatial degree of freedom is emerging as a potential resource for a myriad of applications, in both classical and quantum domains, including secure communication, sensing a…
Emulating a quantum Maxwell's demon with non-separable structured light
Edgar Medina-Segura, Paola C. Obando, Light Mkhumbuza +6
Maxwell's demon (MD) has proven an instructive vehicle by which to explore the relationship between information theory and thermodynamics, fueling the possibility of information dr…
Quantum Skyrmions in general quantum channels: topological noise rejection and the discretization of quantum information
Robert de Mello Koch, Bo-Qiang Lu, Pedro Ornelas +2
The topology of a pure state of two entangled photons is leveraged to provide a discretization of quantum information. Since discrete signals are inherently more resilient to the e…
Emulating quantum computing with optical matrix multiplication
Mwezi Koni, Hadrian Bezuidenhout, Isaac Nape
Optical computing harnesses the speed of light to perform vector-matrix operations efficiently. It leverages interference, a cornerstone of quantum computing algorithms, to enable…
A Variational Approach to Learning Photonic Unitary Operators
Hadrian Bezuidenhout, Mwezi Koni, Jonathan Leach +3
Structured light, light tailored in its internal degrees of freedom, has become topical in numerous quantum and classical information processing protocols. In this work, we harness…
Topological rejection of noise by quantum skyrmions
Pedro Ornelas, Isaac Nape, Robert De Mello Koch +1
An open challenge in the context of quantum information processing and communication is improving the robustness of quantum information to environmental contributions of noise, a s…
Non-local Skyrmions as topologically resilient quantum entangled states of light
Pedro Ornelas, Isaac Nape, Robert de Mello Koch +1
In the early 1960s, inspired by developing notions of topological structure, Tony Skyrme suggested that sub-atomic particles be described as natural excitations of a single quantum…
A robust basis for multi-bit optical communication with vectorial light
Keshaan Singh, Isaac Nape, Wagner Tavares Buono +2
Increasing the information capacity of communication channels is a pressing need, driven by growing data demands and the consequent impending data crunch with existing modulation s…
Self-healing of structured light: a review
Yijie Shen, Shankar Pidishety, Isaac Nape +1
Self-healing of light refers to the ability of a light field to recover its structure after being damaged by a partial obstruction placed in its propagation path. Here, we will giv…