Welcome to the Rydberg Quantum Devices team lead by Dr. Jonathan Pritchard, an EPSRC Quantum Technology Fellow at the University of Strathclyde.
Rydberg atoms are atoms excited to extremely large principal quantum numbers resulting in giant atoms offering exaggerated properties including enormous electric-dipole moments in the microwave frequency range. Our research is focused on developing new quantum technologies that exploit these Rydberg atomic dipoles via coupling to superconducting circuits in a hybrid approach to quantum information processing and in developing atomic gas sensors for precision microwave field detection and imaging.
Please contact firstname.lastname@example.org if you are interested in working in within one of our research areas – we have both PhD and PDRA Positions Currently Available for a new project developing a a neutral atom quantum computer based on scalable arrays of neutral atoms.
|This project is an EPSRC Prosperity Partnership with M Squared Lasers that aims to develop a new platform for quantum computing based on scalable arrays of neutral atoms that is able to overcome the challenges to scaling of competing technologies. We will develop new hardware to cool and trap arrays of over 100 qubits that will be used to perform both analogue and digital quantum simulation by exploiting the strong long-range interactions of highly excited Rydberg atoms. Together with the quantum software team lead by Prof. Andrew Daley, we will design new analogue and digital algorithms tailored for the neutral-atom platform to target industrially-relevant computation and optimisation problems.|
|This project seeks to develop next-generation hardware for quantum networking by using atomic ensembles coupled to superconducting microwave circuits to generate, store and entangle photons in a single chip-based device. This offers a direct route to the creation of scalable quantum networks, in addition to future integration with ultra-fast superconducting qubits to enable distributed quantum computing.|
Microwave Field Sensing using Rydberg atoms
|RF fields in the microwave and terahertz domain are ubiquitous for security and communications, however test equipment requires frequent recalibration and careful understanding of the perturbations caused by the antenna used for measurement. This new project, a collaboration between Strathclyde, Durham and NPL, seeks to develop new all-optical field sensors operating in the microwave and terahertz domain using Rydberg atoms in a thermal vapour to act as microscopic antenna enabling metal-free probing, sub-wavelength imaging resolution and the ability to implement a traceable SI calibration offering superior sensitivity compared to existing technologies.
Team: Aurélien Chopinaud
ARC:Alkali Rydberg Calculator
An open-source python library for calculating properties of Alkali Rydberg atoms developed with Nikola Sibalic, Charles Adams and Kevin Weatherill at JQC in Durham. Full details on the arXiv:1612.05529 – download source from GitHub or use the online Atom Calculator by following the link below.
- K. McDonnelI, L.F. Keary and J.D. Pritchard, Demonstration of a Quantum Gate using Electromagnetically Induced Transparency, arXiv:2204.03733 (2022)
- G. Pelegri, A. Daley and J.D. Pritchard, High-fidelity multiqubit Rydberg gates via two-photon adiabatic rapid passage, Quantum Sci. Technol. 7, 045020 (2022)
- L.F. Keary and J.D. Pritchard, Strong coupling and active cooling in a finite-temperature hybrid atom-cavity system, Phys. Rev. A 105, 013707 (2022)
- A. Chopinaud and J.D. Pritchard, Optimal State Choice for Rydberg Atom Microwave Sensors, Phys. Rev. Appl. 16, 024008 (2021)
- Y. Chu, J.D. Pritchard, H. Wang, and Martin Weides,Hybrid quantum devices: Guest editorial, Appl. Phys. Lett. 118, 240401 (2021)
- C.S. Adams, J.D. Pritchard and J. Shaffer, Rydberg atom quantum technologies, J. Phys. B 53 012002 (2020) [arXiv]
- C.J. Picken, R. Legaie, K. McDonnell and J.D. Pritchard, Entanglement of neutral-atom qubits with long ground-Rydberg coherence times, Quantum Sci. Technol. 4, 015011 (2018) [arXiv]
- R. Legaie, C.J. Picken and J.D. Pritchard, Sub-kHz excitation lasers for Quantum Information Processing with Rydberg atoms, J. Opt. Soc. B 35, 892 (2018) [arXiv]
- C.J. Picken, R. Legaie and J.D. Pritchard, Single atom imaging with an sCMOS camera, Applied Physics Letters 111, 164102 (2017) [arXiv]
- N. Šibalić, J.D. Pritchard, C.S. Adams and K.J. Weatherill, ARC: An open-source library for calculating properties of alkali Rydberg atoms, Computer Physics Communications 220, 319 (2017). See atomcalc.jqc.org.uk.