Countermand
发表于 2025-4-1 02:14:09
John T. Van Stan II,Jack Simmonsany individual results on those constants are obtained with use of quantum electrodynamics, and we discuss which sectors of QED are involved. We derive constraints on a possible time variation of the fine structure constants and ..
兴奋过度
发表于 2025-4-1 06:56:31
Measuring and Imaging Nanomechanical Motion with Laser Light,anning laser interferometry, reaching a sensitivity on the order of ., and a transverse resolution down to .. We compare this approach with a less versatile, but faster (single-shot) dark-field imaging technique.
愤慨一下
发表于 2025-4-1 12:19:04
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傲慢物
发表于 2025-4-1 15:12:07
Coherence in Laser-Driven Electrons at the Surface and in the Volume of Solid Matter,ion current from sharp tips, with an interference visibility of 94%. With carrier-envelope phase-controlled laser pulses, we show furthermore how light-field sensitive currents can be excited in monolayer graphene via an interplay of interband and intraband electron dynamics including multiple Landau–Zener transitions.
beta-carotene
发表于 2025-4-1 20:16:59
High-Accuracy Deep-UV Ramsey-comb Spectroscopy in Krypton,find a transition frequency of 2829833101679(103) kHz. The fractional accuracy of . . is 34 times better than previous measurements, and also the isotope shifts are measured with improved accuracy. This demonstration shows the potential of Ramsey-comb excitation for precision spectroscopy at short wavelengths.