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Quantized vortices in mixed 3He-4He drops
Mayol Sánchez, Ricardo; Pi Pericay, Martí; Barranco Gómez, Manuel; Dalfovo, Franco
Universitat de Barcelona
Using density functional theory, we investigate the structure of mixed 3HeN3-4HeN4 droplets with an embedded impurity (Xe atom or HCN molecule) which pins a quantized vortex line. We find that the dopant+vortex+4HeN4 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 = 500 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.
2010-06-10
Líquids quàntics
Teoria del funcional de densitat
Química quàntica
Quantum fluids
Density functionals
Quantum chemistry
(c) American Physical Society, 2001
Article
American Physical Society
         

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