Supersolid Striped Droplets in a Raman Spin-Orbit-Coupled System
| Autor: | Ferran Mazzanti, Jordi Boronat, J. Sánchez-Baena |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity |
| Rok vydání: | 2020 |
| Předmět: |
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 |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| DOI: | 10.48550/arxiv.2007.04196 |
| Popis: | 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 |
| Databáze: | OpenAIRE |
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