Publication

We studied the stability of a Bosonic quantum gas in a 1D optical lattice with periodic driving, Phys. Rev. Research 5, 033024 (2023).

We study nonlinear effects due to optical pumping using hot sodium vapour. Beside technical advantages, such as high optical quality, easy variation of parameters over a broad range, high resonant nonlinearity, the benefit of using an atomic vapour is that the equations governing the light-matter interaction can be derived directly from quantum mechanics via the density matrix approach.

We study ultracold and degenerate fermionic Potassium-40 atoms in a square optical lattice. We were among the first in the world to see individual fermionic atoms in a quantum gas microscope (see link). Our lab has been recognised as the coldest place in Scotland in 2017. Recently we have implemented Raman Sideband cooling and we aim to use this experiment to discover new physics in the Fermi-Hubbard model in the upcomming years.

In this experiment we study ultracold and degenrate bosonic Rubidium atoms in a square optical lattice. We use high resolution static and dynamic programmable potentials to modify the lattice potential that traps the atoms.

This project, supported by a Royal Academy of Engineering Senior Research Fellowship and M Squared Lasers, seeks to develop a new experiment focused on creating dual-species arrays of Cs and Rb for quantum error correction. This is integrated within a 4K closed-cycle cryostat to obtain extended trap lifetime for scaling to large numbers of qubits, and will focus on exploiting long-range dipole interactions between Rydberg states of each species to enable mid-circuit, non-destructive readout and generation of topologically protected logical qubits as a route towards fault tolerant digital quantum computing.

Group Haller

Group McGilligan

We observed Floquet solitons of matter waves in periodically driven systems, Phys. Rev. Lett. 127, 243603 (2021).

The band within the electromagnetic spectrum between about 300 GHz and 3 THz is often referred to as terahertz radiation. Terahertz radiation is considered to be an upcoming technology in material inspection, quality control, gas sensing, surveillance and security applications, and wireless, short-haul communication. We study a method to produce THz radiation by mixing two cw infrared lasers in a special kind of semiconductor (low-temperature grown GaAs).