Suppression of mid-circuit measurement crosstalk errors with micromotion
Mid-circuit measurement and reset are crucial primitives in quantum computation, but such operations require strong interactions with selected qubits while maintaining isolation of neighboring qubits, which is a significant challenge in many systems. For trapped ion systems, measurement is performed...
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| Main Authors | , , , , , , , |
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| Abstract | Mid-circuit measurement and reset are crucial primitives in quantum computation, but such operations require strong interactions with selected qubits while maintaining isolation of neighboring qubits, which is a significant challenge in many systems. For trapped ion systems, measurement is performed with laser-induced fluorescence. Stray light from the detection beam and fluorescence from the measured ions can be significant sources of decoherence for unmeasured qubits. We present a technique using ion micromotion to reduce these sources of decoherence by over an order of magnitude. We benchmark the performance with a new method, based on randomized benchmarking, to estimate the magnitude of crosstalk errors on nearby qubits. Using the Honeywell System Model H0, we demonstrate measurement and reset on select qubits with low crosstalk errors on neighboring qubits. |
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| AbstractList | Phys. Rev. A 104, 062440 (2021) Mid-circuit measurement and reset are crucial primitives in quantum
computation, but such operations require strong interactions with selected
qubits while maintaining isolation of neighboring qubits, which is a
significant challenge in many systems. For trapped ion systems, measurement is
performed with laser-induced fluorescence. Stray light from the detection beam
and fluorescence from the measured ions can be significant sources of
decoherence for unmeasured qubits. We present a technique using ion micromotion
to reduce these sources of decoherence by over an order of magnitude. We
benchmark the performance with a new method, based on randomized benchmarking,
to estimate the magnitude of crosstalk errors on nearby qubits. Using the
Honeywell System Model H0, we demonstrate measurement and reset on select
qubits with low crosstalk errors on neighboring qubits. Mid-circuit measurement and reset are crucial primitives in quantum computation, but such operations require strong interactions with selected qubits while maintaining isolation of neighboring qubits, which is a significant challenge in many systems. For trapped ion systems, measurement is performed with laser-induced fluorescence. Stray light from the detection beam and fluorescence from the measured ions can be significant sources of decoherence for unmeasured qubits. We present a technique using ion micromotion to reduce these sources of decoherence by over an order of magnitude. We benchmark the performance with a new method, based on randomized benchmarking, to estimate the magnitude of crosstalk errors on nearby qubits. Using the Honeywell System Model H0, we demonstrate measurement and reset on select qubits with low crosstalk errors on neighboring qubits. |
| Author | Dreiling, J M Baldwin, C H Gaebler, J P Pino, J M Moses, S A Foss-Feig, M Hayes, D Figgatt, C |
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| BackLink | https://doi.org/10.48550/arXiv.2108.10932$$DView paper in arXiv https://doi.org/10.1103/PhysRevA.104.062440$$DView published paper (Access to full text may be restricted) |
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| DOI | 10.48550/arxiv.2108.10932 |
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| Snippet | Mid-circuit measurement and reset are crucial primitives in quantum computation, but such operations require strong interactions with selected qubits while... Phys. Rev. A 104, 062440 (2021) Mid-circuit measurement and reset are crucial primitives in quantum computation, but such operations require strong... |
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| SubjectTerms | Circuits Crosstalk Laser induced fluorescence Physics - Quantum Physics Quantum computing Qubits (quantum computing) |
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| Title | Suppression of mid-circuit measurement crosstalk errors with micromotion |
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