44 citations · 351 across the 34 of their papers we have counts for
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Anderson-Bogoliubov collective excitations in superfluid Fermi gases at nonzero temperatures
S. N. Klimin, H. Kurkjian, J. Tempere
The Anderson-Bogoliubov branch of collective excitations in a condensed Fermi gas is treated using the effective bosonic action of Gaussian pair fluctuations. The spectra of collec…
Linear response of a superfluid Fermi gas inside its pair-breaking continuum
H. Kurkjian, J. Tempere, S. N. Klimin
We study the signatures of the collective modes of a superfluid Fermi gas in its linear response functions for the order-parameter and density fluctuations in the Random Phase Appr…
Leggett collective excitations in a two-band Fermi superfluid at finite temperatures
S. N. Klimin, H. Kurkjian, J. Tempere
The Leggett collective excitations for a two-band Fermi gas with s-wave pairing and Josephson interband coupling in the BCS-BEC crossover at finite temperatures are investigated wi…
Beyond mean-field corrections to the quasiparticle spectrum of superfluid Fermi gases
Senne Van Loon, Jacques Tempere, Hadrien Kurkjian
We investigate the fermionic quasiparticle branch of superfluid Fermi gases in the BCS-BEC crossover and calculate the quasiparticle lifetime and energy shift due to its coupling w…
Collective excitation branch in the continuum of pair-condensed Fermi gases : analytical study and scaling laws
Yvan Castin, Hadrien Kurkjian
The pair-condensed unpolarized spin- Fermi gases have a collective excitation branch in their pair-breaking continuum (V.A. Andrianov, V.N. Popov, 1976). We study it at zero t…