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Updated: Aug 18, 2025
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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
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Demonstration of Tunable Three-Body Interactions between Superconducting Qubits
Tim Menke1,2,3, William P Banner4, Thomas R Bergamaschi1
1Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Physical Review Letters
|December 9, 2022
Summary
We demonstrate a superconducting circuit architecture enabling tunable three-qubit interactions. This architecture is crucial for advancing quantum simulations and error correction in quantum information processing.
Area of Science:
- Quantum Computing
- Superconducting Circuits
- Quantum Information Science
Background:
- Nonpairwise multiqubit interactions are valuable for quantum information processors.
- These interactions can enhance quantum simulations and simplify error correction.
Purpose of the Study:
- To present a superconducting circuit architecture for implementing two-local and three-local interactions.
- To demonstrate coherent tunability of three-local interactions.
Main Methods:
- Utilized a coupling module to mediate interactions between three flux qubits.
- Employed multiqubit pulse sequences and Ramsey-type interferometry to estimate the system Hamiltonian.
Main Results:
- Successfully implemented and characterized two-local and three-local interactions.
- Demonstrated coherent tunability of the three-local interaction over several MHz.
- Showcased the ability to turn off the three-local interaction.
Conclusions:
- The presented architecture effectively enables tunable multiqubit interactions.
- This work is significant for applications in quantum annealing, analog quantum simulation, and gate-model quantum computation.
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