A team of University of Oregon physicists simulated an “ideal glass” in a two-dimensional computer model, achieving an amorphous state that is mechanically crystal-like with zero configurational entropy.

Led by physicist Eric Corwin, the Oregon team created the first computer model of an ideal glass—a theoretically perfect, densely packed amorphous structure without crystalline order that remains mechanically stable.

Researchers aim to extend the approach to three dimensions and explore practical implications for manufacturing advanced materials, including applications like injection molding for complex components.

The findings were published in Physical Review Letters in March 2026, marking a significant advancement in the study of disordered materials and the glass transition.

To reach this state, the team used a mutable-radius disk system that dynamically adjusts particle sizes to eliminate voids, guided by the circle packing theorem to create a fully triangulated network where each disk touches six neighbors.

The work draws inspiration from two-dimensional honeycomb patterns but removes periodic structure to maintain tight packing in an amorphous configuration, with preliminary tests showing crystalline-like mechanical behavior.

Historically, the concept of an ideal glass was proposed by Walter Kauzmann in 1948, and this work provides computational realization that supports long-standing theoretical ideas.

The model demonstrates that molecules can arrange randomly yet remain mechanically stable, achieving packing efficiency and stability similar to crystals despite lacking long-range order.

The research could inform real-world materials science, particularly metallic glasses, by providing insights into glass transitions and potentially enabling slower cooling pathways to produce stronger, more moldable alloys.

This breakthrough could enable the development of new materials, such as metallic glasses, with stronger yet adaptable components and the potential to transform manufacturing by enabling complex parts to be produced through molding rather than traditional methods.

The work addresses the Kauzmann entropy crisis and the ideal glass concept, showing that such a state can exist in a simulated environment even if it is unachievable under ordinary cooling.

The simulated ideal glass exhibits crystal-like mechanical stability, resisting shear and bending, lacks typical low-frequency deformation of ordinary amorphous glasses, and melts at very high temperatures due to dense packing, with hyperuniformity on large scales.