First Electronic-Photonic Quantum Chip Created In Commercial Foundry (bu.edu)
(Sunday July 20, 2025 @09:44PM (EditorDavid)
from the chipping-away dept.)
It's "a milestone for scalable quantum technologies," according to the [1]announcement from Boston University . Scientists from Boston University, UC Berkeley, and Northwestern University "reported the world's first electronic-photonic-quantum system on a chip, according to a [2]study published in Nature Electronics ."
Quantum computing is on "a decades-long path from concept to reality," says Milos PopoviÄ, associate professor of electrical and computer engineering at BU and a senior author on the study. "This is a small step on that path — but an important one, because it shows we can build repeatable, controllable quantum systems in commercial semiconductor foundries."
> The system combines quantum light sources and stabilizing electronics using a standard 45-nanometer semiconductor manufacturing process to produce reliable streams of correlated photon pairs (particles of light) — a key resource for emerging quantum technologies. The advance paves the way for mass-producible "quantum light factory" chips and large-scale quantum systems built from many such chips working together...
>
> Just as electronic chips are powered by electric currents, and optical communication links by laser light, future quantum technologies will require a steady stream of quantum light resource units to perform their functions. To provide this, the researchers' work created an array of "quantum light factories" on a silicon chip, each less than a millimeter by a millimeter in dimension... "What excites me most is that we embedded the control directly on-chip — stabilizing a quantum process in real time," says Anirudh Ramesh, a PhD student at Northwestern who led the quantum measurements. "That's a critical step toward scalable quantum systems."
Thanks to long-time Slashdot reader [3]fahrbot-bot for sharing the news.
[1] https://www.bu.edu/eng/2025/07/14/first-electronic-photonic-quantum-chip-created-in-commercial-foundry/
[2] https://www.nature.com/articles/s41928-025-01410-5
[3] https://slashdot.org/~fahrbot-bot
Quantum computing is on "a decades-long path from concept to reality," says Milos PopoviÄ, associate professor of electrical and computer engineering at BU and a senior author on the study. "This is a small step on that path — but an important one, because it shows we can build repeatable, controllable quantum systems in commercial semiconductor foundries."
> The system combines quantum light sources and stabilizing electronics using a standard 45-nanometer semiconductor manufacturing process to produce reliable streams of correlated photon pairs (particles of light) — a key resource for emerging quantum technologies. The advance paves the way for mass-producible "quantum light factory" chips and large-scale quantum systems built from many such chips working together...
>
> Just as electronic chips are powered by electric currents, and optical communication links by laser light, future quantum technologies will require a steady stream of quantum light resource units to perform their functions. To provide this, the researchers' work created an array of "quantum light factories" on a silicon chip, each less than a millimeter by a millimeter in dimension... "What excites me most is that we embedded the control directly on-chip — stabilizing a quantum process in real time," says Anirudh Ramesh, a PhD student at Northwestern who led the quantum measurements. "That's a critical step toward scalable quantum systems."
Thanks to long-time Slashdot reader [3]fahrbot-bot for sharing the news.
[1] https://www.bu.edu/eng/2025/07/14/first-electronic-photonic-quantum-chip-created-in-commercial-foundry/
[2] https://www.nature.com/articles/s41928-025-01410-5
[3] https://slashdot.org/~fahrbot-bot