The Kitaev Model (IMAGE) Tokyo Institute of Technology Caption The vertices of this honeycomb network represent sites with two possible spin states. One intriguing property of this model is that a magnetic pulse applied in the left shaded region causes spin changes in the right shaded regions but not in the middle portion. Until now, the mechanism by which the spin perturbation crossed the middle region was unclear. Credit Akihisa Koga 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.