Nonlinear waves of Bose-Einstein condensates in rotating ring lattice potentials

Autor:	Mateo, A. Muñoz, Delgado, V., Guilleumas, M., Mayol, R., Brand, J.
Rok vydání:	2018
Předmět:	Condensed Matter - Quantum Gases
Zdroj:	Phys. Rev. A 99, 023630 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.99.023630
Popis:	We analyze the dynamics of Bose-Einstein condensates loaded in rotating ring lattices made of a few sites, and show how rotation maps the states found in this finite system into those belonging to a static infinite lattice. Ring currents and soliton states in the absence of a lattice find their continuation in the presence of the lattice as nonlinear Bloch waves and soliton-like states connecting them. Both bright gap solitons and dark-soliton trains are shown to connect continuously to linear solutions. The existence of adiabatic paths upon varying rotation frequency between states with quantized supercurrents suggests highly controllable methods for the experimental generation of persistent currents. Comment: 14 pages, 13 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1811.05565 Zobrazit plný text záznamu View this record from Arxiv