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A platform for quantum information and large-scale entanglement with Rydberg atoms in programmable optical potentials

Revelle, Melissa R.; Martin, Michael J.; Biedermann, Grant B.

Large-scale quantum systems with controllable interactions are important for understanding complex phenomena in nature, and are the basis for advanced quantum technologies. Realizing a controllable platform for controlling, understanding, and ultimately harnessing the entanglement is an outstanding challenge in quantum science. This project demonstrated reconfigurable arrays of individually-trapped ultracold atoms, thus realizing a platform that could demonstrate large-scale quantum entanglement with the addition of strong inter-atomic interactions. Arrays of more than 50 trap sites were formed via digital holography and a high- numerical aperture imaging system that featured in-situ trap diagnostics and single-atom imaging resolution. We further discovered a new implementation of a controlled-phase gate that utilized coherent excitation to Rydberg states. This method will enable robust entanglement protocols in many-atom systems such as the one developed here. ACKNOWLEDGEMENTS We would like to acknowledge support from the Sandia National Laboratories LDRD program.

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TYPE SAND Report YEAR 2019
OSTIDOI
Results 26–43 of 43
Results 26–43 of 43