2001/07/02 by Ricardo Mayol, R. Mayol, Marti Pi +5
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat #physics.atm-clus
paper · pdf · doi:10.1103/physrevlett.87.145301
"Typeset using Revtex, 3 pages and 4 Postscript figures."
arxiv created 2001/07/02 · openalex publication_date 2001/09/12 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
Using density functional theory, we investigate the structure of mixed 3He_N3\ensuremath-4He_N4 droplets with an embedded impurity (Xe atom or HCN molecule) which pins a quantized vortex line. We find that the dopant+vortex+4He_N4 complex, which in a previous work [F. Dalfovo et al., Phys. Rev. Lett. 85, 1028 (2000)] was found to be energetically stable below a critical size Ncr, is robust against the addition of 3He. While 3He atoms are distributed along the vortex line and on the surface of the 4He drop, the impurity is mostly coated by 4He atoms. Results for N4\phantom\rule0ex0ex=\phantom\rule0ex0ex500 and a number of 3He atoms ranging from 0 to 100 are presented, and the binding energy of the dopant to the vortex line is determined.