Box traps on an atom chip for one-dimensional quantum gases

Abstract

We present the implementation of tailored trapping potentials for ultracold gases on an atom chip. We realize highly elongated traps with box-like confinement along the long, axial direction combined with conventional harmonic confinement along the two radial directions. The design, fabrication and characterization of the atom chip and the box traps is described. We load ultracold ($\lesssim 1\mu$K) clouds of ${}^{87}$Rb in a box trap, and demonstrate Bose-gas focusing as a means to characterize these atomic clouds in arbitrarily shaped potentials. Our results show that box-like axial potentials on atom chips are very promising for studies of one-dimensional quantum gases.

9 pages 4 figures

References in corpus (12)

• Many-Body Physics with Ultracold Gases
• Non-equilibrium coherence dynamics in one-dimensional Bose gases
• Yang-Yang thermodynamics on an atom chip
• Sensing electric and magnetic fields with Bose-Einstein Condensates
• Condensate splitting in an asymmetric double well for atom chip based sensors
• Long-Range Order in Electronic Transport through Disordered Metal Films
• Matter-wave Interferometry with Phase Fluctuating Bose-Einstein Condensates
• Multi-layer atom chips for versatile atom micro manipulation
• Experimental evidence for the breakdown of a Hartree-Fock approach in a weakly interacting Bose gas
• Theoretical tools for atom laser beam propagation
• Three-dimensional character of atom-chip-based rf-dressed potentials
• Designing potentials by sculpturing wires

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