Related papers: Stable supersolids and boselets in spin-orbit-coupled Bose-Einstein condensates with three-body interactions

Stable supersolids and boselets in spin-orbit-coupled Bose-Einstein condensates with three-body interactions

URL: http://arxiv.org/abs/2506.03505v1
Date: Wed, 04 Jun 2025 02:47:46 GMT
Title: Stable supersolids and boselets in spin-orbit-coupled Bose-Einstein condensates with three-body interactions
Authors: Rajamanickam Ravisankar, Sanu Kumar Gangwar, Henrique Fabrelli, Yongping Zhang, Paulsamy Muruganandam, Pankaj Kumar Mishra, Emmanuel Kengne, Gao Xianlong, Boris A. Malomed,
Abstract summary: We study the stability of supersolid striped waves, plane-wave boselets, and other extended states in one-dimensional spin-orbit-coupled Bose-Einstein condensates.<n>In the absence of R3BIs, the extended states are susceptible to the modulational instability (MI) induced by the cubic attractive nonlinearity.<n>Our analysis reveals that R3BIs eliminate baseband and zero-wavenumber-gain MIs, forming, instead, phonon modes that enable stable boselets.
Score: 0.20062759014970538
License: http://creativecommons.org/licenses/by/4.0/
Abstract: We explore the stability of supersolid striped waves, plane-wave boselets, and other extended states in one-dimensional spin-orbit-coupled Bose-Einstein condensates with repulsive three-body interactions (R3BIs), modeled by quintic terms in the framework of the corresponding Gross-Pitaevskii equations. In the absence of R3BIs, the extended states are susceptible to the modulational instability (MI) induced by the cubic attractive nonlinearity. Using the linearized Bogoliubov-de-Gennes equations, we identify multiple new types of MI, including baseband, passband, mixedband, and zero-wavenumber-gain ones, which give rise to deterministic rogue waves and complex nonlinear wave patterns. Our analysis reveals that R3BIs eliminate baseband and zero-wavenumber-gain MIs, forming, instead, phonon modes that enable stable boselets. Additionally, mixedband and passband MIs are suppressed, which results in a lattice-like phonon-roton mode that supports a stable supersolid phase. These stable supersolids can be realized using currently available ultracold experimental setup.

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