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Search Publications by: Shawn Geller (Fed)

Displaying 1 - 2 of 2

Improving quantum state detection with adaptive sequential observations

May 13, 2022

Author(s)

Emanuel Knill, Scott Glancy, Daniel Cole, Shawn Geller

For many quantum systems intended for information processing, one detects the logical state of a qubit by integrating a continuously observed quantity over time. For example, ion and atom qubits are typically measured by driving a cycling transition and

High-fidelity indirect readout of trapped-ion hyperfine qubits

April 21, 2022

Author(s)

Stephen Erickson, Jenny Wu, Panyu Hou, Daniel Cole, Shawn Geller, Alexander Kwiatkowski, Scott Glancy, Emanuel Knill, Daniel Slichter, Andrew C. Wilson, Dietrich Leibfried

We propose and demonstrate a protocol for high-fidelity indirect readout of trapped ion hyperfine qubits, where the state of a 9Be+ qubit ion is mapped to a 25Mg+ readout ion using laser-driven Raman transitions. By partitioning the 9Be+ ground-state