caa a22 4500 445365684 CHVBK 20180317142929.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10909-010-0230-3 doi (NATIONALLICENCE)springer-10.1007/s10909-010-0230-3 Extended Fluid-Dynamics and Collective Motion ofTwo Trapped Fermion Species with Pairing Interactions [Elektronische Daten] [E. Hernández, P. Capuzzi, L. Szybisz] We extend our earlier fluid-dynamical description of fermion superfluids incorporating the particle energy flow together with the equation of motion for the internal kinetic energy of the pairs. The formal scheme combines a set of equations similar to those of classical hydrodynamics with the equations of motion for the anomalous density and for its related momentum density and kinetic energy density. This dynamical frame represents a second order truncation of an infinite hierarchy of equations of motion isomorphic to the full time dependent Hartree-Fock-Bogoliubov equations in coordinate representation. We analyze the equilibrium solutions and fluctuations for a homogeneous, unpolarized fermion system of two species, and show that the collective spectrum presents the well-known Anderson-Bogoliubov low energy mode of homogeneous superfluids and a pairing vibration near the gap energy. Springer Science+Business Media, LLC, 2010 Fermion superfluids nationallicence Collective spectrum nationallicence Gapped mode nationallicence Hernández E. Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and Consejo Nacional, de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina aut Capuzzi P. Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and Consejo Nacional, de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina aut Szybisz L. Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and Consejo Nacional, de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/3-4(2011-02-01), 274-280 0022-2291 162:3-4<274 2011 162 10909 https://doi.org/10.1007/s10909-010-0230-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-010-0230-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hernández E. Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and Consejo Nacional, de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Capuzzi P. Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and Consejo Nacional, de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Szybisz L. Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and Consejo Nacional, de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/3-4(2011-02-01), 274-280 0022-2291 162:3-4<274 2011 162 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer