Kurzweilai – How the properties of quarks and gluons can be used (in principle) to perform computation at the femtometer (10^-15 meter) scale. An atom is about 10^-10 m in size. The next smallest ...

Sub-Femtometer-Resolution Absolute Spectroscopy Based on Dual Electro-Optic Frequency Comb A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2022.210023 considers sub-femtometer ...

In a recent study posted to the arXiv preprint server, the ALICE collaboration has measured a similar interference pattern at the femtometer scale using ultra-peripheral collisions between lead ...

Using a cryogenic beam of H atoms, we measured the 2S-4P transition frequency in H, yielding the values of the Rydberg constant R∞ = 10973731.568076(96) per meter and rp = 0.8335(95) femtometer. Our ...

Jul 11, 2022: Sub-femtometer-resolution absolute spectroscopy based on dual electro-optic frequency comb (Nanowerk News) Optical frequency comb (OFC) provides equidistant comb lines in broad bandwidth ...

The team’s measurement of the proton’s radius was 0.73 femtometer, even smaller than the 0.84-femtometer electric charge radius. In either case, it is almost 10,000 times smaller than a ...