[Figure] (IMAGE) Science China Press Caption d维拓扑物相的整数拓扑不变量在能带反转面(BIS)上的普适动力学表征 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. 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.