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Updated: Jun 6, 2025
05:30
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
Published on: September 8, 2023
487
Can quantum computers do nothing?
Alexander Nico-Katz1,2, Nathan Keenan1,2,3, John Goold1,2,4
1School of Physics, Trinity College Dublin, Dublin 2, Ireland.
NPJ Quantum Information
|November 29, 2024
Summary
Researchers developed a new method to quantify idle information loss in quantum computing. This addresses a critical challenge in protecting qubits while maintaining operational interactions.
Area of Science:
- Quantum Information Science
- Quantum Computing Hardware
Background:
- Quantum computing requires qubits to be isolated when idle but interactive during operations.
- Insufficient isolation leads to information leakage between qubits, hindering computation.
- Existing methods lack a way to quantify this specific idle information loss.
Purpose of the Study:
- To develop a scalable and device-agnostic protocol for quantifying idle information loss in quantum systems.
- To provide a quantitative foundation for addressing the protection-operation dilemma in quantum computing.
Main Methods:
- Utilized tools from quantum information theory to design the quantification protocol.
- Implemented the protocol across over 3500 experiments on IBM's Falcon 5.11 processor series.
- Conducted experiments over a four-month period (December 2023 - March 2024).
Main Results:
- Successfully detected significant idle information loss after accounting for other error sources.
- Demonstrated the protocol's effectiveness and scalability on a real quantum processor.
- Provided statistically significant evidence of information leakage in idling qubits.
Conclusions:
- The developed protocol offers a robust method for quantifying idle information loss.
- This quantitative approach is crucial for resolving the contradictory engineering requirements of quantum platforms.
- Establishes a foundation for improving qubit protection and overall quantum computation fidelity.
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