spin squeezing (IMAGE) Harvard University Caption Spin squeezing is a form of quantum entanglement that can enable more precise measurements (middle). Previously known to arise only in all-to-all interacting systems (left), Harvard researchers have shown that spin squeezing can occur more generally in locally interacting systems that form planar magnets (right). Credit Bingtian Ye Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.