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Quantum photonics roadmap — how Xanadu and PsiQuantum are looking to transfer qubits through beams of light
- Xanadu targets a fault-tolerant photonic quantum computer by the early 2030s, using GKP qubits and modular architectures.
- PsiQuantum pursues a million-qubit photonic platform using silicon photonics and 300 mm wafer manufacturing.
- Xanadu reports progress with Borealis and Aurora milestones, including chip-level error correction and on-chip generation of GKP states.
- PsiQuantum revealed Omega-based manufacturing advances, including a 300 mm wafer compatibility and BTO electro-optic materials.
- Both firms emphasize manufacturing and reliability as key bottlenecks, including photon generation rates and loss management.
- Xanadu collaborates on medical and ML applications, aiming to expand use cases beyond quantum advantage milestones.
- PsiQuantum's Alpha program and GlobalFoundries tie-up mark steps toward large-scale manufacturing for quantum photonics.
- Analyst framing positions quantum photonics as a practical path, though major engineering hurdles remain before commercial utility.
- Tom's Hardware frames quantum photonics as a race with government programs fueling progress.
- The article contrasts dual-rail encoding with continuous-variable encoding, outlining each path’s pros and challenges.
- The piece notes that photon generation is probabilistic and causes efficiency losses in photonic systems.
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