TEI ENCODING IN CONJUNCTION WITH MYSQL, JAVASCRIPT, AND HTML TO CREATE A VISUAL VARIORUM EDITION OF DON QUIXOTE

2010/01/01 by S. Hannig, L. Pelzer, N. Scharnhorst +11 · 2 citations
Engineering · Physics and Astronomy · #Advanced Frequency and Time Standards #Advanced Measurement and Metrology Techniques #Aperture (computer memory) #Artificial intelligence #Atomic and Molecular Physics #Chaos control and synchronization #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Conjunction (astronomy) #Doppler effect #Encoding (memory) #Information retrieval #Ion #Ion trap #JavaScript #Laser #Laser cooling #Programming language #Quantum #Quantum logic #Trap (plumbing) #World Wide Web #physics.atom-ph

paper · pdf · doi:10.1063/1.5090583

14 pages, 17 figures

openalex publication_date 2010/01/01 · openalex created_date 2016/06/24 · arxiv created 2019/05/14 · arxiv updated 2019/06/26 · openalex updated_date 2026/06/24

Abstract

With the advent of optical clocks featuring fractional frequency uncertainties on the order of 10^-17 and below, new applications such as chronometric leveling with few-centimeter height resolution emerge. We are developing a transportable optical clock based on a single trapped aluminum ion, which is interrogated via quantum logic spectroscopy. We employ singly charged calcium as the logic ion for sympathetic cooling, state preparation, and readout. Here, we present a simple and compact physics and laser package for manipulation of ⁴⁰Ca⁺. Important features are a segmented multilayer trap with separate loading and probing zones, a compact titanium vacuum chamber, a near-diffraction-limited imaging system with high numerical aperture based on a single biaspheric lens, and an all-in-fiber ⁴⁰Ca⁺ repump laser system. We present preliminary estimates of the trap-induced frequency shifts on ²⁷Al⁺, derived from measurements with a single calcium ion. The micromotion-induced second-order Doppler shift for ²⁷Al⁺ has been determined to be δν_EMMν=-0.4_-0.3 ^+0.4×10^-18 and the black-body radiation shift is δν_BBR/ν = (-4.0 ± 0.4) × 10^-18. Moreover, heating rates of 30 (7) quanta per second at trap frequencies of ω_rad,Ca+ ≈ 2π × 2.5 MHz (ω_ax,Ca+ ≈ 2π × 1.5 MHz) in radial (axial) direction have been measured, enabling interrogation times of a few hundreds of milliseconds.

Citations

• Atomic clocks: new prospects in metrology and geodesy
• Absolute Frequency Measurement of theCa<mml:none/>+<mml:mprescripts/><mml:none/>404s S1/2<mml:none/><mml:mprescripts/><mml:none/>2−3d D5/2<mml:none/><mml:mprescripts/><mml:none/>2Clock Transition
• Observation of theS0<mml:none/><mml:mprescripts/><mml:none/>1→P0<mml:none/><mml:mprescripts/><mml:none/>3Clock Transition inAl<mml:none/>+<mml:mprescripts/><mml:none/>27
• Laser ablation loading of a radiofrequency ion trap
• Frequency Ratio of Al+and Hg+Single-Ion Optical Clocks; Metrology at the 17th Decimal Place
• An objective lens for efficient fluorescence detection of single atoms
• Optical Clocks and Relativity
• Spectroscopy Using Quantum Logic
• Quantum computing with trapped ions
• High Performance Clocks and Gravity Field Determination
• On-line estimation of local oscillator noise and optimisation of servo parameters in atomic clocks
• Search for New Physics with Atoms and Molecules
• Sympathetic sideband cooling of a 40 Ca + – 27 Al + pair toward a quantum logic clock
• Advances in the accuracy, stability, and reliability of the PTB primary fountain clocks
• An all-optical ion-loading technique for scalable microtrap architectures

Cited by

• Design and Implementation of a Blade-Type Linear Paul Trap
• High-Stability Single-Ion Clock with 5.5×10^-19 Systematic Uncertainty