Laserless trapped-ion quantum simulations without spontaneous scattering using microtrap arrays

Understand

We propose an architecture and methodology for large-scale quantum simulations using hyperfine states of trapped-ions in an arbitrary-layout microtrap array with laserless interactions.

• An ion is trapped at each site, and the electrode structure provides for the application of single and pairwise evolution operators using only locally created microwave and radio-frequency fields.
• The avoidance of short-lived atomic levels during evolution effectively eliminates errors due to spontaneous scattering; this may allow scaling of quantum simulators based on trapped ions to much larger systems than currently estimated.
• Such a configuration may also be particularly appropriate for one-way quantum computing with trapped-ion cluster states.