Complex Polarizability Calculations for Alkali Atoms

Archived code calculates the complex dynamic polarizability of alkali atom fine-structure levels. It implements a numerically stable method to decompose polarizability into scalar, vector, and tensor components. The code accompanies a 2026 paper by Patenotte, Kim, Gebretsadkan, and Ni from Harvard Dataverse.

Use Cases

• Compute scalar polarizability (alpha_s) for alkali atom levels using the sum-over-states expression.
• Analyze vector polarizability (alpha_v) behavior as omega^-3 for far-detuned fields.
• Calculate tensor polarizability (alpha_t) contributions using the stable 'insensitive' resonance term.
• Validate the absence of far-detuned attractive optical traps by comparing polarizability component magnitudes.

Strengths

• Implements a numerically stable method to eliminate catastrophic cancellation in calculations.
• Provides decomposition into three specific polarizability components (scalar, vector, tensor).

Limitations

• Dataset size, row count, and specific file formats are unknown.
• The code is archived and may not be actively maintained or updated.
• Input data requirements and computational dependencies are not specified.

Provenance

Source

Harvard Dataverse archive of code from GitHub repository github.com/gpatenotte/AlkaliPolarizability.

Collection Method

Archived computational code for theoretical physics calculations.

Freshness

Last updated on 2026-03-31.