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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Strongly correlated quantum walks with a 12-qubit superconducting processor.
Zhiguang Yan1,2, Yu-Ran Zhang3,4,5, Ming Gong1,2
1Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
Science (New York, N.Y.)
|May 4, 2019
Summary
Researchers demonstrated quantum walks with one and two photons on superconducting qubits. This work advances quantum simulation and universal quantum computation, showcasing fermionization of strongly interacting photons.
Area of Science:
- Quantum Information Science
- Condensed Matter Physics
- Quantum Computing
Background:
- Quantum walks are quantum analogs of classical random walks.
- They are crucial for quantum simulation and universal quantum computation.
- Superconducting qubits offer a platform for implementing quantum dynamics.
Purpose of the Study:
- To experimentally demonstrate quantum walks of one and two strongly correlated microwave photons.
- To investigate quantum dynamics and entanglement in a superconducting qubit array.
- To explore phenomena like photon fermionization in interacting systems.
Main Methods:
- Utilized a one-dimensional array of 12 superconducting qubits.
- Implemented one-photon and two-photon quantum walks.
- Employed tomographic readout for analyzing qubit states and correlations.
Main Results:
- Observed propagation of density and correlation in one-photon walks.
- Detected quantum entanglement between qubit pairs.
- Demonstrated photon fermionization in two-photon walks via long-range anticorrelations.
Conclusions:
- Experimental demonstration of quantum walks on a quantum processor is achieved.
- This work paves the way for quantum simulation of many-body phenomena.
- It advances the realization of universal quantum computation using superconducting qubits.
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