Email Print Share

Bringing quantum entanglement to the people

A young attendee of the Public Quantum Network launch event controls the measurement of photons travelling through The Urbana Free Library that are entangled with photons on the University of Illinois Urbana-Champaign campus.

A young attendee of the Public Quantum Network launch event controls the measurement of photons.

February 16, 2024

A U.S. National Science Foundation Quantum Leap Challenge Institute has created a working demonstration that brings entanglement between photons to a public setting for the first time.

This unique educational exhibit debuted in November 2023 at the Urbana Free Library, where more than 200 observers of all ages had the opportunity to play around with quantum science and technology previously confined to research labs. Projects like this are critical in demystifying quantum concepts and inspiring learners of all ages to participate in STEM. 

The core of the library exhibit is an interactive apparatus with rotatable optical elements that measure the orientation of light's vibration, or its polarization, sitting on a table in the library. Light is guided into and out of this apparatus via optical fiber connected to the University of Illinois — about two miles away. 

Read the full article

The U.S. National Science Foundation propels the nation forward by advancing fundamental research in all fields of science and engineering. NSF supports research and people by providing facilities, instruments and funding to support their ingenuity and sustain the U.S. as a global leader in research and innovation. With a fiscal year 2023 budget of $9.5 billion, NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and institutions. Each year, NSF receives more than 40,000 competitive proposals and makes about 11,000 new awards. Those awards include support for cooperative research with industry, Arctic and Antarctic research and operations, and U.S. participation in international scientific efforts.

mail icon Get News Updates by Email 

Connect with us online
NSF website:
NSF News:
For News Media:
Awards database:

Follow us on social