Ultracold atoms in radio-frequency dressed potentials beyond the rotating-wave approximation

2006/11/30 by Sebastian Hofferberth, S. Hofferberth, B. Fischer +7 · 8 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Computational physics #Computer science #Physics #Quantum #Quantum electrodynamics #Quantum mechanics #Quantum optics and atomic interactions #Radio frequency #Telecommunications #Ultracold atom #quant-ph

paper · pdf · doi:10.1103/physreva.76.013401

published as Phys. Rev. A 76, 013401 (2007) · 6 pages, 4 figures

openalex publication_date 2007/07/06 · arxiv created 2007/08/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study dressed Bose-Einstein condensates in an atom chip radio-frequency trap. We show that in this system sufficiently strong dressing can be achieved to cause the widely used rotating-wave approximation (RWA) to break down. We present a full calculation of the atom-field coupling which shows that the non-RWA contributions quantitatively alter the shape of the emerging dressed adiabatic potentials. The non-RWA contributions furthermore lead to additional allowed transitions between dressed levels. We use rf spectroscopy of Bose-Einstein condensates trapped in the dressed state potentials to directly observe the transition from the RWA to the beyond-RWA regime.

Citations

• Optimized magneto-optical trap for experiments with ultracold atoms near surfaces
• Solution of the Schrödinger Equation with a Hamiltonian Periodic in Time
• Electromagnetically Induced Transparency

Cited by

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• RF spectroscopy in a resonant RF-dressed trap
• Magnetic interactions of cold atoms with anisotropic conductors
• Harmonic dual dressing of spin one-half systems
• Spatial adiabatic passage: a review of recent progress
• Trapping ultracold atoms in a time-averaged adiabatic potential
• Speeding up the spatial adiabatic passage of matter waves in optical microtraps by optimal control
• Coherent adiabatic transport of atoms in radio-frequency traps