Dirac Electrons (IMAGE) Weizmann Institute of Science Caption The symmetry-breaking phase transition in magic-angle graphene. The four 'flavors' of Dirac electrons filling their energy levels are represented by four 'liquids' filling conical glasses. Credit Weizmann Institute of Science Usage Restrictions None License Licensed 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.