Photonic Inc. has introduced a groundbreaking family of Quantum Low-Density Parity Check (QLDPC) codes that dramatically reduce the number of quantum bits (qubits) needed for computation and error correction, outperforming traditional surface code methods. This innovation, outlined in the paper "Computing Efficiently in QLDPC Codes," could accelerate the practical implementation of quantum computing by up to 20 times.

The SHYPS codes, as they're called, offer up to 20 times more efficiency than traditional error correction approaches, reducing the need for millions of physical qubits in large-scale quantum systems. With error correction being critical for realizing quantum computing's full capabilities, this milestone is a significant step toward making quantum computing more feasible.

Figure 1. Photonic’s QLDPC Codes Cut Qubit Requirements by 20x

The SHYPS QLDPC code family, designed for efficiency, requires specific hardware capabilities, such as high connectivity, which is supported by Photonic’s Entanglement First architecture [1]. These codes have undergone extensive testing in the most advanced simulations available, proving their practical viability. Additionally, they are compatible for use within and between modules, making them ideal for distributed quantum systems. Figure 1 shows Photonic’s QLDPC Codes Cut Qubit Requirements by 20x.

For further details on the SHYPS QLDPC code family and Photonic’s innovations in quantum error correction, readers can access the papers “Launching SHYPS: QLDPC is the New Error Correction” and “Computing Efficiently in QLDPC Codes” on Photonic’s website.

Founded in 2018, Photonic Inc. is at the forefront of quantum computing innovation, developing commercial-scale quantum computers and networks to tackle some of the world’s most critical challenges across diverse sectors. Based in Vancouver, British Columbia, and employing over 150 people, Photonic is backed by top investors and multinational partners. Their Entanglement First architecture, which utilizes optically linked silicon spin qubits with high connectivity, allows for entanglement distribution, efficient error correction, and smooth integration into existing data center and telecom environments.

The company’s SHYPS Quantum Low-Density Parity Check (QLDPC) code family is a fast, lean, and patent-pending solution designed to enhance quantum computing efficiency [2]. It has specific hardware needs, which Photonic’s Entanglement First architecture satisfies by providing the required connectivity. The SHYPS codes have been rigorously tested in simulations, proving their practical viability, and they are designed to function within and across modules, making them ideal for distributed quantum systems.

David Shaw, Lead Analyst at Global Quantum Intelligence, remarked, “We’re witnessing a race between companies investing in the rare skills needed for in-house code innovation and those opting to be fast followers.” He further emphasized, “Implementing logic always seemed like the most challenging aspect of advancing codes, but this new work has truly exceeded expectations.”

Photonic, based in Vancouver, British Columbia, employs over 150 people and is supported by top investors and multinational partners.

References:

1. https://quantumzeitgeist.com/breakthrough-in-quantum-computing-photonics-new-qldpc-codes-reduce-physical-qubit-requirements-by-20x/
2. https://www.hpcwire.com/2025/02/12/the-timeline-to-useful-qc-may-be-reduced-with-breakthrough-in-error-correction/

Cite this article:

Janani R (2025), Quantum Breakthrough: Photonic QLDPC Codes Cut Qubit Needs by 20x, AnaTechMaz, pp.66