3 papers
quant-ph2026
Microwave-driven same-species sympathetic cooling for trapped ions
M. C. Smith, E. Vandrey, A. D. Leu +5
Sympathetic cooling of data qubits by coolant ions is an essential technique for trapped-ion quantum computing. Conventionally a second ion species is used, requiring additional la…
quant-ph2026
Quantum Nonlocal Games on Graph Ensembles
Joshua Tucker, Chris Weeks, Peter Drmota +11
Quantum entanglement is one of the most striking discoveries in all of science. This effect allows, for instance, two spatially separated agents to coordinate their actions, withou…
quant-ph2025
Single-qubit gates with errors at the level
M. C. Smith, A. D. Leu, K. Miyanishi +2
We report the achievement of single-qubit gates with sub-part-per-million error rates, in a trapped-ion Ca hyperfine clock qubit. We explore the speed/fidelity trade-o…