Measurement of the Coulomb Logarithm in a Radio-Frequency Paul Trap

Abstract

Samples of ultracold 174 Yb+ ions, confined in a linear radio-frequency Paul trap, are heated via self-induced micromotion interruption, while their temperature, density, and therefore structural phase are monitored and simulated. The observed time evolution of the ion temperature is compared to a theoretical model for ion-ion heating allowing a direct measurement of the Coulomb logarithm in a linear Paul trap. This result permits a simple, yet accurate, analytical description of ion cloud thermodynamic properties, e.g. density, temperature, and structural phase, as well as suggests limits to and improvements for on-going trapped-ion quantum information efforts.

References in corpus (5)

• 14-qubit entanglement: creation and coherence
• Structural defects in ion crystals by quenching the external potential: the inhomogeneous Kibble-Zurek mechanism
• Fluorescence during Doppler cooling of a single trapped atom
• A new method for producing ultracold molecular ions
• Velocity Relaxation in a Strongly Coupled Plasma

Cited by in corpus (17)

• Ion-trap measurements of electric-field noise near surfaces
• Cold hybrid ion-atom systems
• Synthesis of mixed hypermetallic oxide BaOCa${}^{+}$ from laser-cooled reagents in an atom-ion hybrid trap
• Neutral gas sympathetic cooling of an ion in a Paul trap
• Buffer-gas cooling of a single ion in a multipole radio frequency trap beyond the critical mass ratio
• Radial two-dimensional ion crystals in a linear Paul trap
• Blue-sky bifurcation of ion energies and the limits of neutral-gas sympathetic cooling of trapped ions
• Trapping electrons in a room-temperature microwave Paul trap
• Controlling the potential landscape and normal modes of ion Coulomb crystals by a standing wave optical potential
• High-precision spectroscopy of the HD+ molecule at the 1-p.p.b. level
• Superstatistical velocity distributions of cold trapped ions in molecular dynamics simulations
• Engineering excited-state interactions at ultracold temperatures
• Increase of barium ion-trap lifetime via photodissociation
• Explicit, analytical radio-frequency heating formulas for spherically symmetric nonneutral plasmas in a Paul trap
• Resolved-sideband Micromotion Sensing in Yb${}^{+}$ on the 935 nm Repump Transition
• Critical exponents for the cloud-crystal phase transition of charged particles in a Paul Trap
• Perturbative solution of Vlasov equation for periodically driven systems