A Glowing Discovery: New State of Quantum Matter Revealed by UC Irvine Physicists

Quantum Matter Visualization

In a groundbreaking experiment that could redefine the landscape of quantum electronics and deep space computing, researchers at the University of California, Irvine have successfully identified a brand-new state of quantum matter. Published in the journal Physical Review Letters, this newly measured phase of matter may offer a pathway to ultra-efficient, radiation-hardened computing systems that can thrive even in the hostile environment of space.

“This is a new phase of matter, comparable to the way water can exist as ice, liquid, or vapor,” said Professor Luis A. Jauregui, the study's lead investigator. “But instead of molecules, we're seeing a fluid of electrons and their positively charged counterparts—called ‘holes’—pairing up to form what are known as excitons.” Even more unusual is that these excitons demonstrate spin-triplet alignment, with both particles spinning in the same direction, a highly exotic configuration never measured experimentally—until now.

Unlocking the Excitonic Insulator

The quantum phase was discovered within a specially synthesized material called hafnium pentatelluride (HfTe5). What makes this material extraordinary is how it transforms when exposed to extreme magnetic fields of up to 70 Tesla—over 700 times stronger than a powerful refrigerator magnet. Under these conditions, the material’s electrical conductivity suddenly plummets, indicating a shift into this new exotic quantum state.

Physicists were able to probe these effects at the Los Alamos National Laboratory and the National High Magnetic Field Laboratory, where they subjected the material to ultraquantum limits. The discovery opens a door to spintronic technologies—where information is carried by quantum spin instead of electric charge—a technique that could dramatically reduce energy consumption in future electronics.

Quantum Matter for the Space Age

One of the most promising aspects of this newly discovered quantum state is its apparent immunity to radiation. As Professor Jauregui notes, “It could be incredibly useful for long-duration space missions. If you want computers in space that are going to last, this is one way to make that happen.” This could make it a vital component in the development of computers designed for Mars missions or deep-space exploration—areas where cosmic rays and extreme conditions typically render traditional electronics unreliable.

Scientific Collaboration Across Borders

The research represents a multidisciplinary effort: Jinyu Liu, a postdoctoral researcher in Jauregui’s lab, led the material synthesis and measurements. Theoretical modeling was conducted by physicists at Los Alamos including Shizeng Lin and Avadh Saxena. High-magnetic-field experiments were carried out with experts from both Los Alamos and the National High Magnetic Field Laboratory in Florida.

Beyond its immediate technological promise, this discovery reinforces the immense value of quantum condensed matter physics in revolutionizing future computing paradigms. As spintronics and excitonic materials continue to evolve, researchers are hopeful that real-world applications—from quantum memory to robust AI hardware—are just around the corner.

For more details, read the original article on Phys.org: https://phys.org/news/2025-07-physicists-state-quantum.html

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#QuantumMatter #Spintronics #ExcitonicInsulator #MaterialsScience #SpaceComputing #DeepSpaceMissions #UCResearch #CondensedMatter #FutureElectronics #PWmat

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