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Title
Using Special Relativity for QND Detection of a One-Particle Mechanical Oscillator to Make the Most Precise Tests of the Standard Model and to Probe for Physics Beyond
Abstract
Special relativity provides the quantum non-demolition (QND) coupling of a one-electron qubit and a quantum limited detector. Quantum jump spectroscopy and a quantum backaction circumvention method will minimize the otherwise dominant detector backaction, and spontaneous emission is greatly inhibited. This allows one electron to be used to make the most precise measurement of properties of an elementary particle — the magnetic moments of an electron or a positron. These moments are the most precise prediction of the Standard Model of Particle Physics (SM), setting up the most precise confrontation ever made of theory and experiment, the most precise test of the SM, the most precise test of the fundamental lepton CPT invariance in the SM, and a sensitive probe for BSM (beyond the SM) physics. The status of a very different measurement underway to measure the electron's other moment — its electric dipole moment (EDM) — will also be mentioned. This ACME experiment is using the huge electric field on electrons bound in ThO molecules.
Bio
Professor Gabrielse’s group uses methods of quantum science to carry out some of the most precise tests of the Standard Model of Particle Physics and some of the most sensitive searches for physics beyond the Standard Model. The ACME search for the electric dipole moment of the electron takes place in the Gabrielse lab, as does the most accurate measurement of a property of an elementary particle, the test of the Standard Model's most precise prediction, and novel searches for dark matter. One trapped particle, molecular beams, ulta low temperatures, and many lasers are employed. Professor Gabrielse is the director of the Center for Fundamental Physics at Low Energy (CFP).
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