Non-invasive vibrational mode spectroscopy of ion Coulomb crystals through resonant collective coupling to an optical cavity field

Abstract

We report on a novel non-invasive method to determine the normal mode frequencies of ion Coulomb crystals in traps based on the resonance enhanced collective coupling between the electronic states of the ions and an optical cavity field at the single photon level. Excitations of the normal modes are observed through a Doppler broadening of the resonance. An excellent agreement with the predictions of a zero-temperature uniformly charged liquid plasma model is found. The technique opens up for investigations of the heating and damping of cold plasma modes, as well as the coupling between them.

4 pages, 4 figures

References in corpus (3)

• Cavity Opto-Mechanics with a Bose-Einstein Condensate
• Positioning of the rf potential minimum line of a linear Paul trap with micrometer precision
• Loading of large ion Coulomb crystals into a linear Paul trap incorporating an optical cavity for cavity QED studies

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• Oscillation Spectrum of a Magnetized Strongly Coupled One-Component-Plasma
• Structural transitions of ion strings in quantum potentials
• Thermodynamics and dynamics of atomic self-organization in an optical cavity
• Nano-friction in cavity quantum electrodynamics
• Collective strong coupling between ion Coulomb crystals and an optical cavity field: Theory and experiment
• Two-dimensional spectroscopy for the study of ion Coulomb crystals
• Quantum light by atomic arrays in optical resonators
• Collective excitations of a spherically confined Yukawa plasma
• Fluid Modes of a Spherically Confined Yukawa Plasma
• Buckling transitions and clock order of two-dimensional Coulomb crystals
• Background-free detection of trapped ions
• Sympathetic Wigner function tomography of a dark trapped ion
• Quasi-localized charge approximation approach for the nonlinear structures in strongly coupled Yukawa systems
• Entanglement detection by Bragg scattering
• Thermal bistability in laser-cooled trapped ions