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Updated: Feb 12, 2026
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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
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A blueprint for demonstrating quantum supremacy with superconducting qubits.
C Neill1, P Roushan2, K Kechedzhi3,4
1Department of Physics, University of California, Santa Barbara (UCSB), Santa Barbara, CA 93106, USA. cneill@google.com martinis@physics.ucsb.edu.
Science (New York, N.Y.)
|April 14, 2018
Summary
Researchers used nine superconducting qubits to achieve quantum supremacy, a computation beyond classical computers. This advancement paves the way for solving complex physics and chemistry problems.
Area of Science:
- Quantum Computing
- Computational Physics
- Quantum Chemistry
Background:
- Achieving quantum supremacy is crucial for advancing quantum systems.
- Classical computers face limitations in solving complex physics and chemistry problems.
Purpose of the Study:
- To demonstrate a promising path toward quantum supremacy using superconducting qubits.
- To explore the computational capabilities of quantum systems.
Main Methods:
- Utilized nine superconducting qubits.
- Individually tuned qubit parameters to generate distinct Hamiltonian evolutions.
- Probed output probabilities of the quantum system.
Main Results:
- Generated thousands of distinct Hamiltonian evolutions.
- Measured probabilities follow a universal distribution, indicating uniform sampling of the Hilbert space.
- Observed the system exploring exponentially growing states as qubit count increases.
Conclusions:
- The study demonstrates a viable approach to achieving quantum supremacy.
- Extending to 50 qubits could enable solutions to currently intractable scientific questions.
- Quantum systems show potential for surpassing classical computational limits.
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