High-precision particle number difference preparation platform

Abstract

The invention provides a high-precision particle number difference preparation platform, which comprises a light source module, a state selection preparation module, a magnetic field module, a radiation field module, a particle number difference preparation module and a detection module, wherein the light source module is used for enabling atoms to generate pumping light through stimulated radiation; the state selection preparation module is used for collecting isotope atoms of the atoms and filtering two hyperfine structure components in the focused pumping light; the magnetic field module provides an external magnetic field and is used for splitting the atom ground state hyperfine structure to form a quantization axis; the radiation field module is used for enabling the atomic ground state hyperfine structure to generate resonance transition; the particle number difference preparation module is used for pumping atoms in a ground state F=1 energy state to a ground state F=2 energy state under the irradiation of the pumping light filtered by the state selection preparation module; and the detection module enables the output signal frequency to be locked at the center frequency of an atomic spectral line in the particle number difference preparation module through quantum deviation correction. According to the high-precision particle number difference preparation platform, the population difference of particles can be increased with high precision, the observation of microwave or radio frequency resonance between atomic ultrafine sub-energy levels is facilitated, and the research on the internal fine structure and change of atoms is facilitated.

Description

technical field [0001] The invention relates to the field of atomic structure, in particular to a high-precision particle number difference preparation platform. Background technique [0002] With the development of spectroscopy, the study of spectroscopy has provided a large amount of data about the atomic structure, which has greatly promoted the progress of atomic physics. However, if we want to understand the finer structure and changes inside microscopic particles such as atoms, the research of spectroscopy is often unsatisfactory due to the limitation of instrument resolution and spectral line width. For this reason, research methods of spectroscopy have been developed, such as direct observation of microwave or radio frequency resonance between atomic hyperfine sub-levels, in order to obtain more subtle structures and changes inside atoms. Taking rubidium atoms as an example, the difference between the number of atoms in the ground state F=1 and the ground state F=2 ...

AI Technical Summary

Problems solved by technology

Taking rubidium atoms as an example, the difference between the number of atoms in the ground state F=1 and the ground state F=2 is very small, so the energy involved in microwave or radio frequency resonance is very small, which is not easy to observe, resulting in the inability to accurately carry out the finer structure inside the atom and change research

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