RF dressed atoms beyond the linear Zeeman effect
arXiv:1209.3182 · doi:10.1088/1367-2630/14/12/123008
Abstract
We evaluate the impact that nonlinear Zeeman shifts have on resonant radio-frequency (RF) dressed traps in an atom-chip configuration. The degeneracy of the resonance between Zeeman levels is lifted at large intensities of a static field, modifying the spatial dependence of the atomic adiabatic potential. In this context, we find effects that are important for the next generation of atom chips with tight trapping: in particular, that the vibrational frequency of the atom trap is sensitive to the RF frequency and, depending on the sign of the Landé factor, can produce significantly weaker, or tighter trapping when compared to the linear regime of the Zeeman effect. We take 87Rb as an example and find that it is possible for the trapping frequency on F = 1 to exceed that of the F = 2 hyperfine manifold.
8 pages, 6 figures
References in corpus (29)
- 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
- Adiabatic radio frequency potentials for the coherent manipulation of matter waves
- Time-averaged adiabatic ring potential for ultracold atoms
- Dynamics of a tunable superfluid junction
- A ring trap for ultracold atoms
- Time-Averaged Adiabatic Potentials: Versatile traps and waveguides for ultracold quantum gases
- Ultracold atoms confined in rf-induced two-dimensional trapping potentials
- Atom trapping and two-dimensional Bose-Einstein condensates in field-induced adiabatic potentials
- Ultracold atoms in radio-frequency-dressed potentials beyond the rotating wave approximation
- Weakly interacting Bose gas in the one-dimensional limit
- Measuring Energy Differences by BEC Interferometry on a Chip
- Dynamically controlled toroidal and ring-shaped magnetic traps
- Bose-Einstein condensates in RF-dressed adiabatic potentials
- Atoms in a radiofrequency-dressed optical lattice
- Adiabatic Splitting, Transport, and Self-Trapping of a Bose-Einstein Condensate in a Double-Well Potential
- Control of inhomogeneous atomic ensembles of hyperfine qudits
- Evaporative cooling in a radio-frequency trap
- Trapping Ultracold Atoms in a Time-Averaged Adiabatic Potential
- Atom chip for BEC interferometry
- Three-dimensional character of atom-chip-based rf-dressed potentials
- Trapping and cooling of rf-dressed atoms in a quadrupole magnetic field
- Atom chips with two-dimensional electron gases: theory of near surface trapping and ultracold-atom microscopy of quantum electronic systems
- RF spectroscopy in a resonant RF-dressed trap
- Influence of the Radio-Frequency source properties on RF-based atom traps
- Coherent adiabatic transport of atoms in radio-frequency traps
- Novel techniques to cool and rotate Bose-Einstein condensates in time-averaged adiabatic potentials
- Enhancement of On-Site Interactions of Tunnelling Ultracold Atoms in Optical Potentials using Radio-Frequency Dressing
Cited by in corpus (6)
- Shell potentials for microgravity Bose-Einstein condensates
- Non-adiabatic losses from radio-frequency dressed cold atom traps: beyond the Landau-Zener model
- "Magic" radio-frequency dressing for trapped atomic microwave clocks
- Probing multiple-frequency atom-photon interactions with ultracold atoms
- Quantum Simulations with Bilayer 2D Bose Gases in Multiple-RF-dressed Potentials
- Decoherence-free radiofrequency dressed subspaces