WebMar 4, 2024 · Description. Linear RF Paul trap used in an aluminum ion optical clock. This project uses techniques from quantum information science to enable precision … WebJul 15, 2024 · As described in Physical Review Letters, the quantum logic clock’s systematic uncertainty (how closely the clock represents the ion’s natural vibrations, or frequency) is 9.4×10 −19, the best of any clock worldwide. This means the logic clock would now neither gain nor lose one second in 33 billion years, which is about two-and-a …
Development of a deep-ultraviolet pulse laser source operating at …
WebApr 12, 2024 · The scheme is based on a frequency-doubled optical parametric oscillator (FD-OPO) together with a cascaded frequency conversion process. We use a … WebWe propose a direct laser cooling scheme of Al{} + ion optical clocks where both the stability and accuracy of the clocks are greatly improved. In the proposed scheme, two … they worshiped the creation not the creator
Ion Optical Clocks and Precision Measurements NIST
WebJul 13, 2006 · Abstract: We have constructed an optical clock with a fractional frequency inaccuracy of 8.6x10{sup -18}, based on quantum logic spectroscopy of an Al{sup +} ion. A simultaneously trapped Mg{sup +} ion serves to sympathetically laser cool the Al{sup +} ion and detect its quantum state. The frequency of the {sup 1}S{sub 0}reversible{sup … WebJul 15, 2024 · Abstract We describe an optical atomic clock based on quantum-logic spectroscopy of the 1 S 0 <- -> 3 P 0 transition in 27 Al + with a systematic uncertainty of 9.0 x 10-19 and a frequency stability of 1.2 X 10-15 /(T 1/2).A 25 Mg + ion is simultaneously trapped with the 27 Al + ion and used for sympathetic cooling and state readout during … WebMay 1, 2024 · where Q is the quality factor, is the clock cycle time, N is the number of atoms, τ is the averaging time, and η is a numerical factor near unity. In the case of the … they worshipped him but some doubted