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Updated: Jun 28, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Efficient Implementation of a Single-Qutrit Gate Set via Coherent Control.
Xiang-Min Yu1,2,3,4,5, Xiang Deng1,2,3, Wen Zheng1,2,3
1Nanjing University, National Laboratory of Solid State Microstructures, School of Physics, Nanjing 210093, China.
Physical Review Letters
|June 26, 2026
Summary
Researchers developed a new method for fast, high-fidelity single-qutrit gates using SU(3) dynamics. This breakthrough enables efficient quantum computation with qutrits, advancing quantum processor development.
Area of Science:
- Quantum Information Science
- Quantum Computing
- Quantum Control
Background:
- Qutrits, utilizing a three-dimensional Hilbert space, promise enhanced quantum computation capabilities.
- Implementing high-fidelity and fast single-qutrit gates is a significant challenge due to platform-specific constraints.
Purpose of the Study:
- To develop a novel framework for efficient single-qutrit gate implementation.
- To overcome intrinsic quantum platform limitations in qutrit gate synthesis.
Main Methods:
- Leveraged SU(3) dynamics for coherent control of qutrit operations.
- Utilized a superconducting transmon to demonstrate proof-of-principle gate realization.
- Employed randomized benchmarking for fidelity verification.
Main Results:
- Achieved 35-nanosecond single-qutrit Hadamard and X gates with 99.5% average fidelity.
- Demonstrated two quantum circuits extendable to scalable qudit algorithms.
- Proposed an SU(3)-based decomposition strategy showing improved efficiency over SU(2) protocols.
Conclusions:
- The novel framework facilitates efficient single-qutrit gate implementation, overcoming platform constraints.
- This work paves the way for high-performance qutrit processors.
- The developed methods are applicable to diverse quantum platforms for advanced quantum computation.
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