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Generation of large-scale continuous-variable cluster states multiplexed both in time and frequency domains
Optics Express
|March 2, 2023
Summary
Researchers generated large-scale continuous variable (CV) cluster states for quantum computing. These states, multiplexed in time and frequency, enable scalable quantum information processing and pave the way for fault-tolerant quantum computers.
Area of Science:
- Quantum Information Science
- Quantum Optics
- Quantum Computing
Background:
- Large-scale continuous variable (CV) cluster states are essential for measurement-based quantum computing (MBQC).
- Time-domain multiplexing offers a scalable approach for generating these states experimentally.
Purpose of the Study:
- To demonstrate the parallel generation of large-scale 1D dual-rail CV cluster states multiplexed in time and frequency domains.
- To show the extension of these states into ultra-large 3D cluster states.
- To present concrete quantum computing schemes utilizing the generated states.
Main Methods:
- Utilizing time-delay nondegenerate optical parametric amplification systems and beam-splitters.
- Multiplexing dual-rail CV cluster states in both time and frequency domains.
- Developing parallel generation techniques for 1D states and extending them to 3D.
Main Results:
- Successfully generated 1D large-scale dual-rail CV cluster states multiplexed in time and frequency.
- Demonstrated the scalability to ultra-large 3D CV cluster states.
- Showcased the potential for millions of partite numbers in each array, dependent on frequency comb lines.
Conclusions:
- The proposed schemes enable the generation of scalable, large-scale 1D and 3D CV cluster states.
- These advancements may facilitate fault-tolerant and topologically protected MBQC in hybrid domains.
- Further integration with quantum error correction can enhance the practical application of these quantum computing schemes.
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