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Tiny Chip, Huge Quantum Leap! ⚡
Daily news that is actually intellectually stimulating.
Anthony Ao
July 22, 2025
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Quantum Photonics Meets Silicon: First All‑in‑One Electronic–Photonic Quantum Chip Rolls off a Commercial Foundry
Researchers from Northwestern University, Boston University, and UC Berkeley have built the first silicon chip that natively combines quantum‑light sources with on‑chip control electronics. Just 1 mm² in size, the device generates entangled photon pairs and continuously stabilizes them via built‑in feedback circuits—no bulky external equipment required.
A close-up image of the chip. Because the chip uses built-in feedback to stabilize itself, it behaves predictably despite temperature changes and fabrication variations — an essential requirement for scaling up quantum systems. It also bypasses the need for large external equipment.
Why It Matters
Researchers from Northwestern University, Boston University, and UC Berkeley have built the first silicon chip that natively combines quantum‑light sources with on‑chip control electronics. Just 1 mm² in size, the device generates entangled photon pairs and continuously stabilizes them via built‑in feedback circuits—no bulky external equipment required.
Integrating photonics and electronics on a single CMOS chip has long been a bottleneck for practical quantum technology. Demonstrating a stable, factory‑made chip shows that quantum components can now ride the semiconductor industry’s decades‑honed production infrastructure—bringing quantum applications closer to real‑world deployment.
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The PhDLevel Team
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