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APS ViewPoint ‘‘An Accordion Lattice Playing a Soliton Tune’’

Your article on lattice solitons has been featured with a Viewpoint article by the American Physical Society.

Jan 25, 2026

APS ViewPoint ''An Accordion Lattice Playing a Soliton Tune''

Tunable optical lattices for the creation of matter-wave lattice solitons

We present an experimental setup which provides a versatile environment to study soliton formation and evolution in lattice potentials. Opt. Express 34, 623-637 (2026).

Jan 10, 2026

Tunable optical lattices for the creation of matter-wave lattice solitons

Supersolids and quantum droplets via light mediated interactions.

A colloboration between the Experimental Quantum Optics and Photonics Group (T. Ackemann, E. Haller) and Computional Nonlonerar and Quantum Optics Group (G. Robb, P. Kirton) obtained funding from EPSRC for the investigation of Supersolids and quantum droplets via light mediated interactions.

Nov 18, 2025

Supersolids and quantum droplets via light mediated interactions.

CDT Recruitment Event – January 15th 2026

Our Centre for Doctoral Training (CDT) in Applied Quantum Technologies will host a recruitment event on January 15th 2026. This event is an excellent opportunity for prospective applicants to learn more about our cutting-edge programme, meet key members of the team, and gain valuable insights into the unique academic and research opportunities we offer.

Nov 5, 2025

Sparse Graph Optimization using Weighted Quantum Wires in Rydberg Atom Arrays

Neutral atom arrays provide a versatile platform to implement coherent quantum annealing as an approach to solving hard combinatorial optimization problems. In this work we present and experimentally demonstrate an efficient encoding scheme based on chains of Rydberg-blockaded atoms, which we call quantum wires, to natively embed maximum weighted independent set (MWIS) and quadratic unconstrained binary optimization (QUBO) problems on a neutral atom architecture. This approach successfully identifies the solutions to the original MWIS and QUBO graph instances. Our work expands the operational toolkit of near-term neutral atom arrays, enhancing their potential for scalable quantum optimization. For more details see arXiv:2503.17115.

Nov 5, 2025

Sparse Graph Optimization using Weighted Quantum Wires in Rydberg Atom Arrays

Lattice solitons of matter waves.

We demonstrated the existence of single- and multi-site solitons in an optical accordion lattice, Phys. Rev. Lett. 135, 263404 (2025).

Oct 16, 2025

Lattice solitons of matter waves.

Self-organized length scales beyond the linear Talbot effect.

In a collaboration with the INPHYNI in Nice and the TU Vienna which just appeared in Physical Review A we are looking now at the interplay of diffraction within the atomic cloud and diffraction in vacuum. It turns out that for most situations it is sufficient to look at the linear Talbot effect but things get more involved, if one puts the mirror “into the cloud”. If you are curious, how to do this and what the resulting length scales are, please look at Phys. Rev. A 111, 063506.

Jun 5, 2025

Self-organized length scales beyond the linear Talbot effect.

Spin Polarization in InGaAs quantum dots for spin-optoelectronics.

New paper in Applied Physics Letter on how the efficiency of introducing a spin polarization in InGaAs quantum dots depends on pump wavelength. Unfortunately, the wavelengths for best spin polarization and best quantum efficiency are not the same. If you are interested, please look at Appl. Phys. Lett. 126, 191102 (2025).

May 15, 2025

Spin Polarization in InGaAs quantum dots for spin-optoelectronics.

Graph Colouring via Quantum Optimization on a Rydberg-Qudit Atom Array

We propose a new approach to natively embedding graph colouring problems onto neutral atom arrays using multiple Rydberg states each representing a unique colour. Graph colouring arises in a wide range of industrially relevant optimisation problems from sharing data across a wifi network to scheduling tasks and planning workloads. Using multiple Rydberg states enables efficient encoding of this problem onto quantum hardware and provides a new direction for near-term applications of neutral atom quantum computing. For more details see arXiv.2504.08598.

Apr 11, 2025

Graph Colouring via Quantum Optimization on a Rydberg-Qudit Atom Array

CDT Recruitment Event – January 10th 2025

Our Centre for Doctoral Training (CDT) in Applied Quantum Technologies will host a recruitment event on January 10th 2025. This event is an excellent opportunity for prospective applicants to learn more about our cutting-edge programme, meet key members of the team, and gain valuable insights into the unique academic and research opportunities we offer.

Dec 5, 2024