Title :
New Measurement of the Electron Magnetic Moment and the Fine Structure Constant
Author :
Gabrielse, Gerald
Author_Institution :
Harvard Univ., Cambridge
Abstract :
The new measurement has an uncertainty that is about six times smaller, and it shifts the values by 1.7 standard deviations. One electron suspended in a Penning trap is used for the new measurement, like in the old measurement. What is different is that the lowest quantum levels of the spin and cyclotron motion are resolved, and the cyclotron as well as spin frequencies are determined using quantum jump spectroscopy.
Keywords :
cyclotrons; magnetic moments; magnetic variables measurement; cyclotron motion; electron magnetic moment; fine structure constant; quantum jump spectroscopy; Atom optics; Atomic measurements; Cyclotrons; Educational institutions; Electrons; Magnetic moments; Optical control; Physics; Plasma measurements; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386814
