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

Using an optical potential with subwavelength resolution in the form of sharp delta-like peaks, 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 a canonical cosine optical lattice potential, double-well potential, and a combination of a classical cosine potential with dark state peaked potential.

Automated summary

By using an optical potential with subwavelength resolution in the form of sharp delta-like peaks, this study increases the anharmonicity in lattice band energies and enhances the stability of ultracold atom p-band gas.