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Related Experiment Video

Updated: Dec 29, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Deterministic generation of a four-component optical cat state.

Jacob Hastrup, Jonas Schou Neergaard-Nielsen, Ulrik Lund Andersen

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    This summary is machine-generated.

    Researchers propose a method for creating optical four-component cat states using linear optics and photon counters. This breakthrough could enable fault-tolerant quantum computing in the optical domain.

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    Area of Science:

    • Quantum Information Science
    • Quantum Optics
    • Quantum Computing

    Background:

    • Four-component cat states are crucial for fault-tolerant continuous variable quantum computing.
    • These states have been generated in the microwave regime but not yet in the optical regime.

    Purpose of the Study:

    • To propose a method for generating optical four-component cat states.
    • To enable fault-tolerant quantum computing in the optical domain.

    Main Methods:

    • Utilizing a simple linear optical circuit.
    • Employing photon counters for state generation.

    Main Results:

    • A feasible method for generating optical four-component cat states is presented.
    • The proposed method is compatible with existing optical setups.

    Conclusions:

    • This work lays the foundation for the experimental generation of fault-tolerant optical continuous variable quantum codes.
    • The proposed scheme could significantly advance the field of optical quantum computing.