If you hit a common crystal with a laser while squeezing it, you can find a "hidden" state of matter that breaks all the normal rules.
March 13, 2026
Original Paper
Hidden polar phase in the quantum paraelectric SrTiO3
arXiv · 2603.12239
The Takeaway
Strontium titanate is a well-studied material that normally refuses to become electric when cooled. By squeezing it and hitting it with ultrafast light pulses, scientists forced it into a secret state characterized by nanometer-scale electrical vibrations, revealing a phase of matter that doesn't appear on standard scientific maps.
From the abstract
Hidden phases of quantum materials are collective states that exist outside the equilibrium phase diagram and can host exotic properties with transformative potential. However, because they can often mimic known states, identifying them remains challenging. Strontium titanate (SrTiO3) epitomizes this challenge: upon cooling, it displays signatures of ferroelectricity yet never develops this order. We combined mechanical strain with ultrafast laser pulses and x-ray scattering to discover a new po