1. Supersolid Striped Droplets in a Raman Spin-Orbit-Coupled System
- Author
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Ferran Mazzanti, Jordi Boronat, J. Sánchez-Baena, Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity
- Subjects
Physics ,Raman spin-orbit-coupled system ,Condensed matter physics ,Física [Àrees temàtiques de la UPC] ,Superfluïdesa ,Scattering ,Condensed matter ,Supersolid striped droplets ,FOS: Physical sciences ,Matèria condensada ,Supersolid ,symbols.namesake ,Superfluidity ,Quantum Gases (cond-mat.quant-gas) ,Phase (matter) ,Orbit (dynamics) ,symbols ,Raman spectroscopy ,Condensed Matter - Quantum Gases ,Quantum fluctuation ,Spin-½ ,Energy functional - Abstract
We analyze the role played by quantum fluctuations on a Raman Spin-Orbit Coupled system in the stripe phase. We show that beyond mean-field effects stabilize the collapse predicted by mean-field theory and induce the emergence of two phases: a gas and a liquid, which also show spatial periodicity along a privileged direction. We show that the energetically favored phase is determined by the Raman coupling and the spin-dependent scattering lengths. We obtain the ground-state solution of the finite system by solving the extended Gross-Pitaevskii equation and find self-bound, droplet-like solutions that feature internal structure through a striped pattern. We estimate the critical number for binding associated to these droplets and show that their value is experimentally accessible. We report an approximate energy functional in order to ease the evaluation of the Lee-Huang-Yang correction in practical terms., Comment: 10 pages, 6 Figures
- Published
- 2020
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