Trapping atoms with radio-frequency adiabatic potentials

Abstract

In this chapter we review the field of radio-frequency dressed atom trapping. We emphasise the role of adiabatic potentials and give simple, but generic models of electromagnetic fields that currently produce traps for atoms at microkelvin temperatures and below. The paper aims to be didactic and starts with general descriptions of the essential ingredients of adiabaticity and magnetic resonance. As examples of adiabatic potentials we pay attention to radio-frequency dressing in both the quadrupole trap and the Ioffe-Pritchard trap. We include a description of the effect of different choices of radio-frequency polarisation and orientations or alignment. We describe how the adiabatic potentials, formed from radio-frequency fields, can themselves be probed and manipulated with additional radio-frequency fields including multi-photon-effects. We include a description of time-averaged adiabatic potentials. Practical issues for the construction of radio-frequency adiabatic potentials are addressed including noise, harmonics, and beyond rotating wave approximation effects.

Review Article, 37 pages, 18 figures

References in corpus (24)

• Many-Body Physics with Ultracold Gases
• Atom Interferometers
• Matter-wave interferometry in a double well on an atom chip
• Long Phase Coherence Time and Number Squeezing of two Bose-Einstein Condensates on an Atom Chip
• Ultracold atoms confined in rf-induced two-dimensional trapping potentials
• Microwave potentials and optimal control for robust quantum gates on an atom chip
• Atomtronics-enabled Quantum Technologies
• Atom trapping and two-dimensional Bose-Einstein condensates in field-induced adiabatic potentials
• Two-point phase correlations of a one-dimensional bosonic Josephson junction
• Ultracold atoms in radio-frequency-dressed potentials beyond the rotating wave approximation
• State-dependent, addressable subwavelength lattices with cold atoms
• Imaging of microwave fields using ultracold atoms
• A two-dimensional quantum gas in a magnetic trap
• Atoms in a radiofrequency-dressed optical lattice
• A Smooth, Inductively Coupled Ring Trap for Atoms
• Evaporative cooling in a radio-frequency trap
• Imaging the collective excitations of an ultracold gas using statistical correlations
• Demonstration of an inductively coupled ring trap for cold atoms
• Symmetric micro-wave potentials for interferometry with thermal atoms on a chip
• Trapping and cooling of rf-dressed atoms in a quadrupole magnetic field
• "Magic" radio-frequency dressing for trapped atomic microwave clocks
• Influence of the Radio-Frequency source properties on RF-based atom traps
• Enhancement of On-Site Interactions of Tunnelling Ultracold Atoms in Optical Potentials using Radio-Frequency Dressing
• Observations of $\lambda /4$ structure in a low-loss radiofrequency-dressed optical lattice