Resonant interaction of trapped cold atoms with a magnetic cantilever tip

TL;DR

This paper demonstrates magnetic resonance in laser-cooled Rb atoms induced by a magnetic cantilever tip, showing potential for high-resolution quantum sensing and manipulation of atomic spins.

Contribution

It introduces a novel method of coupling cold atoms with a mechanical cantilever via magnetic resonance, enabling new quantum control techniques.

Findings

Coupling between cold atoms and a magnetic cantilever was successfully observed.

Zeeman state transitions were induced by the oscillating magnetic tip.

The setup suggests potential for high-resolution quantum sensing and spin manipulation.

Abstract

Magnetic resonance in an ensemble of laser-cooled trapped Rb atoms is excited using a micro- cantilever with a magnetic tip. The cantilever is mounted on a multi-layer chip designed to capture, cool, and magnetically transport cold atoms. The coupling is observed by measuring the loss from a magnetic trap as the oscillating cantilever induces Zeeman state transitions in the atoms. Interfacing cold atoms with mechanical devices could enable probing and manipulating atomic spins with nanometer spatial resolution and single-spin sensitivity, leading to new capabilities in quantum computation, quantum simulation, or precision sensing.