Fluid-dynamical description of the gap fluctuations of two trapped fermion species
We apply a recent generalisation of the fluid-dynamical scheme developed for two trapped fermion species with pairing interactions to examine the fluctuations of the gap density coupled to the particle transition density at low energy. The dynamical scheme satisfies Kohn's theorem for both the...
| Autores principales: | , , |
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2010
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346060_v60_n2_p347_Capuzzi http://hdl.handle.net/20.500.12110/paper_14346060_v60_n2_p347_Capuzzi |
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| Sumario: | We apply a recent generalisation of the fluid-dynamical scheme developed for two trapped fermion species with pairing interactions to examine the fluctuations of the gap density coupled to the particle transition density at low energy. The dynamical scheme satisfies Kohn's theorem for both the particle density and the pairing gap. We analyse the form of the gap fluctuations in a spherical trap in terms of their multipolarity and the interaction strength, and find that coupling to the particle density produces considerable stiffness of the gap transition density together with compression towards the centre of the trap. © 2010 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg. |
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