Rydberg-dressed Bose–Einstein condensate with spin–orbit coupling confined in a radially periodic potential

• Published in: Journal of physics. B, Atomic, molecular, and optical physics Vol. 56; no. 15; pp. 15 - 21
• Main Authors: Tu, Pu, Wang, Qingqing, Shao, Kaihua, Zhao, Yuexing, Ma, Jinping, Su, Ruiming, Shi, Yuren
• Format: Journal Article
• Language: English
• Published: IOP Publishing 14.08.2023
• Subjects: Bose–Einstein condensate; long-range soft-score interactions; radially periodic potentials; spin–orbit coupling
• ISSN: 0953-4075; 1361-6455
• DOI: 10.1088/1361-6455/ace66e

Abstract The use of Rydberg dressing technology to achieve long-range soft-core interaction in Bose–Einstein condensates (BECs) opens up new avenues for exploration of supersolid and its related phenomenon. We investigate the ground state of a two-component spin–orbit-coupled BECs with both long-range soft-core and contact interactions in radially periodic potentials. Our results show that the ground-state structures of the system are strongly influenced by spin–orbit coupling, contact interactions, long-range soft-core interactions, and the amplitude of the external potential. We find that such parameters can been used to induce desired ground-states structures, such as necklace structure of lump, striped standing wave, and especially ring dark soliton. Furthermore, we observe that the long-range soft-core interactions are used to manipulate the transition between miscible-immiscible phases like contact interactions. Our research provides another degree of freedom for manipulating supersolids in spin–orbit-coupled BECs.