Latest News
We studied the stability of a Bosonic quantum gas in a 1D optical lattice with periodic driving, Phys. Rev. Research 5, 033024 (2023).
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 project page QuERy.
Accurate holographic light potentials using pixel crosstalk modelling Scientific Reports 13, 3252 (2023).
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, 030602 (2023) [arXiv].
We have demonstrated the UK’s first neutral atom two-qubit gate using a novel protocol based on electromagnetically induced transparency originally proposed back in 2008. We achieve a corrected CNOT gate fidelity of 0.82(6), mainly limited by available laser power. For more details see Phys. Rev. Lett. 129, 200501 (2022).
Invited book chapter: Vector vortex solitons.
Invited book chapter “Vector vortex solitons and soliton control in vertical-cavity surface-emitting lasers” in Dissipative Optical Solitons (Springer); preprint on arXiv
We have developed a robust protocol for implementing high-fidelity multiqubit controlled phase gates (CkZ) on neutral atom qubits coupled to highly excited Rydberg states via adiabatic rapid passage (ARP). We find a CCZ gate with fidelity F > 0.995 for three qubits and CCCZ with F > 0.99 for four qubits is attainable in ∼ 1.8 μs via this protocol. For more details see our paper in QST.
New Chancellor’s Fellow
Congratulations on Dr Stuart Ingleby becoming the groups newest Chancellors Fellow. Stuart will continue to advance the development of atomic magnetometry, see here for details.
