Magneto-optical trap method and apparatus using positive and negative g-factors
US11800629B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 24, 2020 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Mar 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/093
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A magneto-optical trap apparatus includes a vacuum vessel for encapsulating an atom to be trapped, an anti-Helmholtz coil for applying a magnetic field to an inside of the vacuum vessel, a laser device for generating a laser beam, and an irradiation device for irradiating the generated laser beam from a plurality of directions. The laser beam includes a first laser beam detuned from a first resonance frequency when the atom transits from a total angular momentum quantum number F in a ground state to a total angular momentum quantum number F′=F+1 in an excited state, and a second laser beam detuned from a second resonance frequency when the atom transits from the total angular momentum quantum number F in the ground state to a total angular momentum quantum number F′=F−1 in the excited state, among transitions from J=0 in a ground state to J′=1 in an excited state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.