Quench dynamics in 1D model with 3rd-nearest-neighbor hoppings
Shuai Yue(岳帅)1,2, Xiang-Fa Zhou(周祥发)1,2,†, and Zheng-Wei Zhou(周正威)1,2,‡
1 Key Laboratory of Quantum Information, Chinese Academy of Sciences, Hefei 230026, China; 2 Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026, China
Abstract The non-equilibrium dynamics of a one-dimensional (1D) topological system with 3rd-nearest-neighbor hopping has been investigated by analytical and numerical methods. An analytical form of topological defect density under the periodic boundary conditions (PBC) is obtained by using the Landau-Zener formula (LZF), which is consistent with the scaling of defect production provided by the Kibble-Zurek mechanism (KZM). Under the open boundary conditions (OBC), quench dynamics becomes more complicated due to edge states. The behaviors of the system quenching across different phases show that defect production no longer satisfies the KZM paradigm since complicated couplings exist under OBC. Some new dynamical features are revealed.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.