Título:
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Pinning of quantized vortices in helium drops by dopant atoms and molecules
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Autor/a:
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Dalfovo, Franco; Mayol Sánchez, Ricardo; Pi Pericay, Martí; Barranco Gómez, Manuel
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Otros autores:
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Universitat de Barcelona |
Abstract:
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Using a density functional method, we investigate the properties of liquid 4He droplets doped with atoms (Ne and Xe) and molecules ( SF6 and hydrogen cyanide). We consider the case of droplets having a quantized vortex pinned to the dopant. A liquid-drop formula is proposed that accurately describes the total energy of the complex and allows one to extrapolate the density functional results to large N. For a given impurity, we find that the formation of a dopant+vortex+4HeN complex is energetically favored below a critical size Ncr. Our results support the possibility to observe quantized vortices in helium droplets by means of spectroscopic techniques. |
Materia(s):
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-Líquids quàntics -Química quàntica -Macromolècules -Quantum fluids -Quantum chemistry -Macromolecules |
Derechos:
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(c) American Physical Society, 2000
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Physical Society
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