Related Experiment Video
Updated: Feb 20, 2026

Fabrication and Operation of a Nano-Optical Conveyor Belt
Published on: August 26, 2015
A minimalistic and optimized conveyor belt for neutral atoms
Ritayan Roy1,2, Paul C Condylis3, Vindhiya Prakash3,4
1Centre for Quantum Technologies (CQT), 3 Science Drive 2, Singapore, 117543, Singapore. ritayan.roy@u.nus.edu.
Abstract:
Here we report of a design and the performance of an optimized micro-fabricated conveyor belt for precise and adiabatic transportation of cold atoms. A theoretical model is presented to determine optimal currents in conductors used for the transportation. We experimentally demonstrate a fast adiabatic transportation of Rubidium (87Rb) cold atoms with minimal loss and heating with as few as three conveyor belt conductors. This novel design of a multilayered conveyor belt structure is fabricated in aluminium nitride (AlN) because of its outstanding thermal and electrical properties. This demonstration would pave a way for a compact and portable quantum device required for quantum information processing and sensors, where precise positioning of cold atoms is desirable.
Related Concept Videos
Frictional Forces on Flat Belts
Flat Belts: Problem Solving
Reduced Mass Coordinates: Isolated Two-body Problem
Equilibrium Conditions for a Particle
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
Atomic Force Microscopy
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
Subatomic Particles

