$p$-band stability of ultracold atom gas in anharmonic optical lattice potential with large energy scales

TL;DR

This paper explores how creating highly anharmonic optical lattice potentials with subwavelength features enhances the stability of ultracold atom p-band gases, offering new configurations for improved quantum control.

Contribution

It introduces a novel method of designing optical potentials with subwavelength resolution to increase anharmonicity and stability of ultracold atom p-band gases compared to traditional lattices.

Findings

Enhanced p-band stability in anharmonic potentials

Potential landscapes with increased energy scale control

Comparison of stability across different lattice configurations

Abstract

Using an optical potential with subwavelength resolution in the form of sharp $\delta$-like peaks, new potential landscapes are created with increased anharmonicity in placement of lattice band energies and more favorable energy scales. In particular, this makes the ultracold atom p-band gas more stable. The article outlines the details of the construction and discusses the p-band stability in canonical cosine optical lattice potential, double well potential, and a combination of a classical cosine potential with dark state peaked potential.