Work

Quantum-logic spectroscopy of an electron or positron for precise tests of the standard model

Year: 2025

Type: article

Abstract: We propose a scheme for quantum-logic spectroscopy of an electron or positron in a Penning trap. An electron or positron in a spectroscopy trap is coupled to a remote logic electron or positron via a wire to achieve motional entanglement. By separating the two traps, one can significantly improve magnetic field homogeneity, microwave characteristics, and detection sensitivity. The proposed scheme will improve the measurement precision of the electron's and positron's magnetic moments and charge-to-mass ratios, enabling precise tests of the standard model of particle physics.

Source: Physical Review A

DOI: 10.1103/physreva.111.042806

Authors: Xing Fan, Atsushi Noguchi, Kento Taniguchi

Institutions: Northwestern University, Harvard University, Inamori Foundation, RIKEN Center for Quantum Computing, The University of Tokyo

Language: English

Topic: Atomic and Molecular Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: National Science Foundation

Awards: BSM-PM: Advanced Cold Molecule Electron Electric Dipole Search (ACME III), PM: Electron and Positron Magnetic Moments from a Quantum Cyclotron