Atom chips with free-standing two-dimensional electron gases: advantages and challenges

Abstract

In this work we consider the advantages and challenges of using free-standing two-dimensional electron gases (2DEG) as active components in atom chips for manipulating ultracold ensembles of alkali atoms. We calculate trapping parameters achievable with typical high-mobility 2DEGs in an atom chip configuration, and identify advantages of this system for trapping atoms at sub-micron distances from the atom chip. We show how the sensitivity of atomic gases to magnetic field inhomogeneity can be exploited for controlling the atoms with quantum electronic devices and, conversely, using the atoms to probe the structural and transport properties of semiconductor devices.

Submitted to J. Mod. Opt. Special Issue: Quantum optics, cooling and collisions of ions and atoms

References in corpus (8)

• Long-Range Order in Electronic Transport through Disordered Metal Films
• Persistent Supercurrent Atom Chip
• Measuring Electric Fields From Surface Contaminants with Neutral Atoms
• Trapping molecules on a chip in traveling potential wells
• Bose-Einstein condensation on a superconducting atom chip
• Evanescent-wave trapping and evaporative cooling of an atomic gas near two-dimensionality
• Sensitivity of ultracold atoms to quantized flux in a superconducting ring
• Casimir effects in systems containing 2D layers, like graphene and 2D electron gases