Bose-Einstein-condensate source on an optical-grating-based atom chip for quantum sensor applications

Abstract

We report the preparation of Bose-Einstein condensates (BECs) by integrating laser cooling with a grating magneto-optical trap (GMOT) and forced evaporation in a magnetic trap on a single chip. This new approach allowed us to produce a $6\times 10^4$ atom Bose-Einstein condensate of rubidium-87 atoms with a single laser cooling beam. Our results represent a significant advance in the robustness and reliability of cold atom-based inertial sensors, especially for applications in demanding field environments.

References in corpus (8)

• Stability comparison of two absolute gravimeters: optical versus atomic interferometers
• Ultracold atom interferometry in space
• A high-flux BEC source for mobile atom interferometers
• Laser cooling with a single laser beam and a planar diffractor
• Accurate measurement of the Sagnac effect for matter waves
• Phase-space properties of magneto-optical traps utilising micro-fabricated gratings
• Multi-Dimensional Atom Optics and Interferometry
• Atom interferometry with coherent enhancement of Bragg pulse sequences

Cited by in corpus (2)

• A high-flux cold-atom source utilising a grating atom chip
• Grating magneto-optical trap of cesium atoms with an additional retroreflected laser beam