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 ...

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 ...

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 ...

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 ...

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 ...