Connecting atomic qubit arrays by a cavity
ORAL
Abstract
We analyze an architecture for quantum computers and networks where arrays of atoms are hosted in a centimeters-scale optical cavity. The cavity has two spatially separated focal regions hosting two arrays of atoms, and non-local entangling gates between any atom pair is executed by reflecting single photons off the cavity. We analyze two representative geometries, that of a double bowtie running-wave cavity and a linear standing-wave cavity, as examples of the proposed architecture. For realistic cavity QED and atomic parameters, entangling gates with fidelities > 0.99 and gate times ~100 us may be realized between any atom pair in these cavities, which can host ~500 atoms.
*This material is based upon work supported by the U.S. Department of Energy Office of Science National Quantum Information Science Research Centers as part of the Q-NEXT center, as well as support from NSF Grant No. 2016136 for the QLCI center Hybrid Quantum Architectures and Networks, and NSF Grant No. 2228725.
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Publication: Planned paper/ in preparation:
Connecting atomic qubit arrays by a cavity, Omar Nagib, Akbar Safari, and Mark Saffman (2026).
Presenters
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Omar Nagib
- University of Wisconsin - Madison