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Demonstration of the trapped-ion quantum CCD computer architecture
J M Pino1, J M Dreiling1, C Figgatt1
1Honeywell Quantum Solutions, Broomfield, CO, USA.
Nature
|April 8, 2021
Summary
This study demonstrates a programmable trapped-ion quantum computer using the quantum charge-coupled device (QCCD) architecture. It achieves high performance and low error rates, paving the way for scalable quantum computing.
Area of Science:
- Quantum Computing
- Quantum Information Science
- Atomic Physics
Background:
- The quantum charge-coupled device (QCCD) architecture proposes using mobile ions as qubits for universal quantum computation.
- Scaling trapped-ion quantum computers is challenging due to difficulties in error-controlled operations across multiple zones.
Purpose of the Study:
- To engineer a programmable trapped-ion quantum computer integrating QCCD architecture elements.
- To demonstrate the viability of the QCCD approach for high-performance quantum computation.
Main Methods:
- Utilized a cryogenic surface trap to integrate scalable trap design, parallel interaction zones, and fast ion transport.
- Implemented a QCCD architecture for qubit manipulation and transport.
Main Results:
- Achieved system performance consistent with low error rates in individual ion crystals.
- Realized a teleported CNOT gate with mid-circuit measurement, negligible crosstalk error, and a quantum volume of 64.
Conclusions:
- The QCCD architecture is a viable path towards scalable, high-performance quantum computers.
- Demonstrated successful integration of QCCD elements in a programmable trapped-ion system.
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