Manipulating ultracold atoms with a reconfigurable nanomagnetic system of domain walls

Abstract

The divide between the realms of atomic-scale quantum particles and lithographically-defined nanostructures is rapidly being bridged. Hybrid quantum systems comprising ultracold gas-phase atoms and substrate-bound devices already offer exciting prospects for quantum sensors, quantum information and quantum control. Ideally, such devices should be scalable, versatile and support quantum interactions with long coherence times. Fulfilling these criteria is extremely challenging as it demands a stable and tractable interface between two disparate regimes. Here we demonstrate an architecture for atomic control based on domain walls (DWs) in planar magnetic nanowires that provides a tunable atomic interaction, manifested experimentally as the reflection of ultracold atoms from a nanowire array. We exploit the magnetic reconfigurability of the nanowires to quickly and remotely tune the interaction with high reliability. This proof-of-principle study shows the practicability of more elaborate atom chips based on magnetic nanowires being used to perform atom optics on the nanometre scale.

4 pages, 4 figures

References in corpus (8)

• An integrated atom-photon junction
• One dimensional lattice of permanent magnetic microtraps for ultracold atoms on an atom chip
• Nanowire atomchip traps for sub-micron atom-surface distances
• Fabrication of magnetic atom chips based on FePt
• Piezoelectrically-actuated time-averaged atomic microtraps
• Nanomagnetic engineering of the properties of domain wall atom traps
• Design and Characterization of a Field-Switchable Nanomagnetic Atom Mirror
• A simple model for calculating magnetic nanowire domain wall fringing fields

Cited by in corpus (8)

• Enhancing nanoparticle diffusion on a unidirectional domain wall magnetic ratchet
• Tunable Topologically-protected Super- and Subradiant Boundary States in One-Dimensional Atomic Arrays
• Magnetic lattices for ultracold atoms and degenerate quantum gases
• A Tuneable Magnetic Domain Wall Conduit Regulating Nanoparticle Diffusion
• Magnetic resonance of rubidium atoms passing through a multi-layered transmission magnetic grating
• Skyrmion-based Magnetic Traps for Ultracold Atoms
• Bloch point nanospheres for the design of magnetic traps
• Control of Ultracold Atoms with a Chiral Ferromagnetic Film