Experimental Quantum Optics
and Photonics Group

Latest News

Commensurate and incommensurate 1D interacting quantum systems
We use dynamically varying microscopic light potentials in a quantum-gas microscope to study commensurate and incommensurate 1D systems of interacting bosonic atoms in an optical lattice arXiv:2305.03794.
Dr. Jonathan Pritchard awarded RAEng Senior Research Fellowship

Congratulations to Dr Jonathan Pritchard on receiving a prestigious RAEng Senior Research Fellowship with M Squared Lasers to develop fault-tolerant neutral atom quantum computers. For more information see the RAEng announcement or checkout the project page QuERy.

Accurate holographic light potentials using pixel crosstalk modelling
Accurate holographic light potentials using pixel crosstalk modelling Scientific Reports 13, 3252 (2023).
Randomised benchmarking and non-destructive readout
We have demonstrated high-fidelity randomised benchmarking of single qubit microwave gates across an array of 225 atoms, and non-destructive readout of up to 49 atoms. We achieved an average gate error of 8×10-5 which is below the threshold for fault tolerant operations, highlighting the viability of neutral atoms for scalable computing. For more details see our paper Phys. Rev. Lett. 131, 03602 (2023) [arXiv].

Recent publications

A comparative study of deconvolution techniques for quantum-gas microscope images
New Journal of Physics (2023)
Abstract Quantum-gas microscopes are used to study ultracold atoms in optical lattices at the single-particle level. In these system …
Randomized Benchmarking Using Nondestructive Readout in a Two-Dimensional Atom Array
Physical Review Letters 131, 030602 (2023)
High-efficiency coupled-cavity optical frequency comb generation
Optics Continuum 2, 894 (2023)
We present a high efficiency source of picosecond pulses derived from a dual cavity optical frequency comb generator. This approach …
Accurate holographic light potentials using pixel crosstalk modelling
Scientific Reports 13, (2023)
Arbitrary light potentials have proven to be a valuable and versatile tool in many quantum information and quantum simulation …
Demonstration of quantum-enhanced rangefinding robust against classical jamming
In this paper we demonstrate operation of a quantum-enhanced lidar based on a continuously pumped photon pair source combined with …