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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

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Non-adaptive measurement-based quantum computation on IBM Q.

Jelena Mackeprang^1,2,3, Daniel Bhatti^1,2, Stefanie Barz^4,5

¹Institute for Functional Matter and Quantum Technologies, University of Stuttgart, 70569, Stuttgart, Germany.

Scientific Reports

|September 18, 2023

Summary

This summary is machine-generated.

Researchers tested IBM

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Area of Science:

Quantum Information Science
Quantum Computing Hardware Verification

Background:

Multipartite entanglement is a key resource in quantum information processing.
Verifying the quantum nature of complex entangled states is crucial for advancing quantum technologies.
Non-adaptive measurement-based quantum computation (NMQC) offers a method to detect multipartite entanglement via Bell inequality violations.

Purpose of the Study:

To assess the quantum capabilities of IBM's Quantum System One.
To investigate n-party entanglement in generalized GHZ states using NMQC.
To demonstrate NMQC as a tool for characterizing quantum devices.

Main Methods:

Generation of generalized n-qubit GHZ states on IBM Quantum System One.
Measurement of Bell inequalities derived from NMQC protocols.
Computation of multivariate Boolean functions to distinguish quantum correlations from local hidden variables (LHVs).

Main Results:

Violation of Bell inequalities observed for up to seven qubits.
Demonstrated the capability of NMQC to compute non-linear Boolean functions on a quantum processor.
Comparison of results with a photon-based NMQC implementation.

Conclusions:

IBM Quantum System One exhibits quantum correlations indicative of multipartite entanglement.
NMQC serves as an effective method for characterizing the quantumness of quantum devices.
The study confirms the potential of NMQC for verifying complex quantum states.