Supercurrent-carrying supersolid in spin-orbit-coupled Bose-Einstein condensates

作     者：Lyu, Hao Chen, Yuanyuan Zhu, Qizhong Zhang, Yongping 

作者机构：Institute for Quantum Science and Technology Department of Physics Shanghai University Shanghai200444 China Quantum Systems Unit Okinawa Institute of Science and Technology Graduate University Okinawa Onna904-0495 Japan Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials School of Physics South China Normal University Guangzhou510006 China Guangdong-Hong Kong Joint Laboratory of Quantum Matter Frontier Research Institute for Physics South China Normal University Guangzhou510006 China 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2023年

核心收录：

主　　题：Statistical mechanics 

摘      要：One of brilliant achievements in spin-orbit-coupled Bose-Einstein condensates is the discovery and observation of the supersolid stripe states. So far, all studied supersolid stripe states do not carry supercurrent. In this paper, we reveal the existence of supercurrent-carrying supersolids in spin-orbit-coupled Bose-Einstein condensates. The supersolid family has a parabolic-like dispersion and carries supercurrent which is proportional to the quasimomentum. Energetic and dynamical instabilities can break supercurrent-carrying ability of this supersolid family. An insightful interpretation of the dynamical instability of supercurrent-carrying supersolids from the pure plane-wave phase is provided. © 2023, CC BY.