Measurement-Induced Heating of Trapped Ions

Abstract

We experimentally study the heating of trapped atomic ions during measurement of their internal qubit states. During measurement, ions are projected into one of two basis states and discriminated by their state-dependent fluorescence. We observe that ions in the fluorescing state rapidly scatter photons and heat at a rate of \mbox{$\dot{\bar{n}}\gtrsim 2\times 10^4$ quanta/s}, which is orders of magnitude faster than typical anomalous ion heating rates. We introduce a quantum trajectory-based framework that accurately reproduces the experimental results and provides a unified description of ion heating for both continuous and discrete sources.

18 pages (including 5 appendices), 3 figures

References in corpus (11)

• A Race Track Trapped-Ion Quantum Processor
• Scaling and Suppression of Anomalous Quantum Decoherence in Ion Traps
• Suppression of Heating Rates in Cryogenic Surface-Electrode Ion Traps
• Non-Abelian Topological Order and Anyons on a Trapped-Ion Processor
• 2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays
• Sympathetic ground state cooling and time-dilation shifts in an ${}^{27}{\text{Al}}^{+}$ optical clock
• Topological Order from Measurements and Feed-Forward on a Trapped Ion Quantum Computer
• Demonstration of fault-tolerant Steane quantum error correction
• Measurements of trapped-ion heating rates with exchangeable surfaces in close proximity
• Optimized pulsed sideband cooling and enhanced thermometry of trapped ions
• Rapid Exchange Cooling with Trapped Ions

Cited by in corpus (4)

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• Simulating open-system molecular dynamics on analog quantum computers
• Benchmarking bosonic modes for quantum information with randomized displacements
• Experimental measurement of quantum first-passage-time distributions