Quantum spin liquid observed in physics first

Researchers finally document never-seen-before state of matter.

Two masked people standing in a lab with lasers where they study quantum spin liquid
Prof. Mikhail Lukin (left) and Giulia Semeghini, lead researcher, observe a state of matter predicted and hunted for 50 years but never previously observed. Inside the LISE building they study Quantum spin liquids using lasers. Credit: Kris Snibbe/Harvard Staff Photographer