Mesoscopic Vortex–Meissner currents in ring ladders. (15th May 2018)

• Record Type: Journal Article
• Authors: Haug, Tobias; Amico, Luigi; Dumke, Rainer; Kwek, Leong-Chuan
• Is Part Of: Quantum science and technology. Volume 3:Number 3(2018)
• Publication Date: 2018-05-15
• Subjects: ultracold atoms -- quantum phases -- atomtronics -- ring ladder; Quantum theory -- Periodicals; Quantum theory; Periodicals; 530
• DOI: 10.1088/2058-9565/aaa8c6
• Languages: English
• ISSNs: 2058-9565

Abstract

Abstract: Recent experimental progress have revealed Meissner and Vortex phases in low-dimensional ultracold atoms systems. Atomtronic setups can realize ring ladders, while explicitly taking the finite size of the system into account. This enables the engineering of quantized chiral currents and phase slips in between them. We find that the mesoscopic scale modifies the current. Full control of the lattice configuration reveals a reentrant behavior of Vortex and Meissner phases. Our approach allows a feasible diagnostic of the currents' configuration through time-of-flight measurements.