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Spin excitonic and diffusive modes in superfluid Fermi liquids
Title Spin excitonic and diffusive modes in superfluid Fermi liquids Author info E. E. Kolomeitsev, D. N. Voskresensky Author Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Co-authors Voskresensky Dmitri (50%)
Source document Physical Review C. Vol. 84, no. 6 (2011), pp. [068801-1-068801-4]. - Maryland : American Physical Society, 2011 Keywords neutron stars superconductivity Form. Descr. články - journal articles Language English Country United States of America Annotation The role of the particle-particle p-wave spin interaction in Fermi liquids with an s-wave pairing is studied. Depending on the sign of the interaction, there arises either a new exciton collective mode below the pair-breaking threshold or a diffusive excitation mode above the threshold. The Landau parameters that control the interaction strength are evaluated for various systems: dilute fermion gases, a degenerate electron liquid, metals, atomic nuclei, and neutron matter. The interaction removes also the square-root singularity in the phase space of pairbreaking processes. How these effects influence the neutrino emissivity in neutron Cooper-pair recombinations in neutron stars is shown. URL Link na plný text Public work category ADC No. of Archival Copy 3342 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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