School Colloquia Series: Building quantum matter atom by atom
Tuesday 14th May 2019
G59 Old Main Building
Speaker: Professor Sven Rogge, Centre for Quantum Computation and Communication Technology, School of Physics UNSW
This talk focuses on dopant atoms as building blocks of engineered matter for quantum simulation and computation. A first step was taken towards engineered Hamiltonians for Fermionic systems in the form of atomic chains. Here strongly interacting dopants were employed to simulate a two-site Hubbard Hamiltonian at low effective temperatures with single-site resolution which allows the quantification of the entanglement entropy and Hubbard interaction strengths. I will also present work on single defects in silicon with a spin-orbit interaction for electrical manipulation and coupling. This includes coherence times for holes bound to boron rivalling the best results for donors and optical spectroscopy of two coupled erbium ions.