Characterisation and feasibility study for superradiant lasing in ⁴⁰Ca atoms

Area of Science:

• Atomic physics
• Quantum optics
• Metrology

Background:

• Current optical atomic clocks have limitations in precision.
• Superradiant phenomena offer a pathway to enhanced clock performance.
• Narrow linewidth transitions are crucial for high-precision measurements.

Purpose of the Study:

• To introduce a theoretical model for superradiant lasing in atomic systems.
• To analyze the feasibility of superradiant clocks using 40Ca atoms.
• To investigate magic and magic-zero wavelengths for the 4s2 1S0 ↔ 4s4p 3P1 transition in Ca.

Main Methods:

• Development of a theoretical framework for superradiant lasing.
• Feasibility analysis for experimental implementation in calcium atoms.
• Calculation and robustness analysis of magic wavelengths for specific transitions.

Main Results:

• A theoretical model for superradiant lasing applicable to two- or three-level systems in optical lattices.
• Suggested experimental parameters for achieving superradiant lasing in 40Ca.
• Comprehensive overview of magic wavelengths and magic-zero wavelengths for the relevant Ca transition.

Conclusions:

• Superradiant active clocks hold the potential for unprecedented precision.
• The presented theory and analysis provide a roadmap for experimental realization.
• Accurate determination of magic wavelengths is critical for robust clock operation.