2016/10/31 by Abdelâali Boudjemâa, Abdelaali Boudjemaa · 29 citations
Physics and Astronomy · #Boson #Cold Atom Physics and Bose-Einstein Condensates #Coupling (piping) #Coupling constant #Dipole #High-Energy Particle Collisions Research #Optical properties and cooling technologies in crystalline materials #Quantum #Quantum fluctuation #Thermal #Thermal fluctuations #cond-mat.quant-gas
paper · pdf · doi:10.1016/j.aop.2017.03.020
published in Annals of Physics 381, 68-79 (Elsevier BV) · 9 pages, 3 figures, published version
openalex created_date 2016/10/14 · openalex publication_date 2017/04/05 · arxiv created 2017/05/25 · arxiv updated 2017/05/29 · openalex updated_date 2026/08/05
We systematically study the properties of dipolar Bose gases with two- and three-body contact interactions at finite temperature using the Hartree-Fock-Bogoliubov-Popov approximation. In uniform case, we obtain an exciting new extension of the seminal Lee-Huang-Yang corrected equation of state that depends explicitly on the thermal fluctuations and on the coupling constant of the three-body interaction. We investigate, on the other hand, the effects of thermal fluctuations on the occurrence and stability of a droplet state in a Bose-Einstein condensate with strong dipole-dipole interactions. We find that at finite temperature, the droplet phase appears as a narrow peak surrounded by a broader thermal halo. We show that the number of particles inside the droplet decays with increasing temperature.