2023 CAP Congress / Congrès de l'ACP 2023

(POS-39) Building an open access quantum information processor using Barium Ions

20 Jun 2023, 17:40

2m

Richard J. Currie Center (University of New Brunswick)

Poster (Non-Student) / Affiche (Non-étudiant(e)) Atomic, Molecular and Optical Physics, Canada / Physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC) DAMOPC Poster Session & Student Poster Competition (6) | Session d'affiches DPAMPC et concours d'affiches étudiantes (6)

Speaker

Akbar Jahangiri Jozani (University of Waterloo)

Description

We present our progress towards developing a trapped ion quantum information processor and describe our robust hardware and software architecture. Our platform for storing and processing quantum information is trapped Barium ions. Because of long-lived ground and metastable atomic states and transitions in the visible wavelengths, Ba${}^{+}$ offers exciting possibilities to encode quantum information in flexible ways and to employ low-loss, waveguide-based optical engineering for high-precision and programmable controls. We discuss our progress towards high efficiency isotope-selective loading of ions, especially ${}^{133}$Ba${}^{+}$ that is radioactive (t${}_{1/2}$=10.6 years) and hence can only be used in miniscule quantities, in a surface electrode trap. Furthermore, we remark on generating long chains of Barium ions, cooling them, and individually addressing them by a waveguide based optical addressing system with ultra-low (<1E-4) relative intensity crosstalk for precise and programmable control for individual Ba${}^{+}$ qubits. In the long run, we expect the processor to be an open-access system for academic use.

We acknowledge CFREF, University of Waterloo, NSERC, and Canada Research Chairs program for funding.