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two layers of a chemical structure lie above each other with black balls hovering on top. On the top layer, there is a cyan ball with a white ball in the corresponding layer below

What's Happening at JQI

Sudden Breakups of Monogamous Quantum Couples Surprise Researchers

To understand the properties of materials, it’s crucial to know about the interactions of the particles inside them. A recent experiment by JQI Fellow Mohammad Hafezi and his colleagues explored a new regime of quantum interactions and revealed what happens when you break up the normally monogamous relationships between certain quantum particles.

Read the Story "Sudden Breakups of Monogamous Quantum Couples Surprise Researchers"

We conduct curiosity-driven research that explores the most basic building blocks of nature with an eye toward potential applications in information science and technology.  

News

  • A black and white image of a man wearing glasses and a collared shirt.

    JQI Student Receives UMD Graduate School’s Outstanding Graduate Assistant Award

    March 10, 2026
  • A man wearing glasses and a black sweater adjusts optical equipment in front of a cluttered lab space.

    Conducting Quantum Experiments in the ‘Coolest’ Lab on Campus

    February 16, 2026
  • A small white device is connected to two wires in a metal chamber. It is visible through a circular port hole.

    Quantum Computers Tackle Simulating Quarks

    December 11, 2025
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Events

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Our Research

  • Many-Body Physics

    Some of the most intriguing physics happens when individual particles team up, giving rise to emergent collective properties.

    Learn More about Many-Body Physics
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    Quantum Information and Computing

    JQI physicists are investigating promising quantum computing architectures as well as developing methods to control quantum effects that can be exploited to process information in new ways.

    Learn More about Quantum Information and Computing
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    Quantum Measurement and Control

    Creating quantum states on demand and controlling them is a critical component to developing practical quantum-based devices.

    Learn More about Quantum Measurement and Control

Latest Publications

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The central theme of my research is to apply tools from quantum science to the studies of molecular structures and chemical reactions. To this end, becoming a member of JQI, one of the world's leading quantum centers, is highly valuable for my research program. Conversely, I hope to leverage my interdisciplinary background in both AMO physics and physical chemistry to help foster synergy between quantum and chemical sciences at UMD.

Portrait of Yu Liu
Yu Liu
Assistant Professor

Outreach & Education

JQI Fellows, postdocs, and students actively engage our community and the broader public in science.

About Our Programs & Activites
PFC-supported parametric downconversion demo at the 2016 USASEF. Credit: C. Cesare/JQI
PFC-supported parametric downconversion USASEF demo. Credit: C. Cesare/JQI

Want to Become a Part of Our Team?

The Joint Quantum Institute offers research opportunities for undergraduate students, graduate students and postdoctoral researchers. JQI is located on campus at the University of Maryland, College Park, but researchers may work at NIST or the UMD campus. 

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