A Compact, Transportable, Microchip-Based System for High Repetition Rate Production of Bose-Einstein Condensates

TL;DR

This paper introduces a compact, transportable microchip-based system capable of producing Bose-Einstein condensates at high repetition rates, suitable for practical applications in quantum technologies.

Contribution

It presents a novel, miniaturized system that efficiently generates BECs near an atom microchip with high repetition rate and portability.

Findings

Produces nearly pure BECs with 1.9x10^4 atoms

Operates at a repetition rate of 0.3 Hz

Achieves condensate temperatures close to theoretical transition temperature

Abstract

We present a compact, transportable system that produces Bose-Einstein condensates (BECs) near the surface of an integrated atom microchip. The system occupies a volume of 0.4 m^3 and operates at a repetition rate as high as 0.3 Hz. Evaporative cooling in a chip trap with trap frequencies of several kHz leads to nearly pure condensates containing 1.9x10^4 87Rb atoms. Partial condensates are observed at a temperature of 1.58(8) \mu K, close to the theoretical transition temperature of 1.1 \mu K.