Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Low Temperature Physics

Cold Fermions with Pairing Interactions: New Results Based on Fluiddynamical Descriptions

P. Capuzzi, E. Susana Hernández, L. Szybisz

Published Dec 6, 2011• 2 citations
Publisher
DOI
10.1007/s10909-011-0439-9

Related papers

Generalized Seniority Description of Cold Fermi Gases

G. E. Brown, Boris A. Gelman, T.T.S. Kuo

We suggest that the extension of the Racah seniority description of strongly interacting fermions in the nuclear shell model is directly generalizable to describe pairing of atoms in cold Fermi systems. We illustrate this by the fermionic pairing in the much studied cold two-component gas of Li atoms. Our pairing interaction is two orders of magnitude stronger than that used in the usual BCS approach. We also explain why the Racah scheme is less applicable to nuclei, and discuss the similarities of the strongly-coupled matter in cold fermion systems and the new form of matter found in RHIC close to T_c.

arXiv:nucl-th/0409071•Sep 29, 2004•0 citations

Pairing of Strongly Interacting Fermions without Superfluidity

Christian H. Schunck, Yong-il Shin, André Schirotzek +2 more

Bulletin of the American Physical Society•Feb 4, 2007•0 citations

Pairing and superfluidity in a gas of strongly interacting fermions

Wolfgang Ketterle

APS•May 1, 2008•0 citations

Superfluid Thomas—Fermi approximation for trapped fermi gases

E. Susana Hernández, P. Capuzzi, L. Szybisz

We present a generalization of fermionic fluiddynamics to the case of two trapped fermion species with a contact interaction. Within a mean field approximation, we derive coupled equations of motion for the particle densities, particle currents, and anomalous pair density. For an inhomogeneous system, the equilibrium situation with vanishing currents is described by a generalized Thomas-Fermi relation that includes the superfluid gap, together with a new nonlocal gap equation that replaces the usual BCS one. These equations are numericaly solved resorting to a local density approximation (LDA). Density and gap profiles are analyzed in terms of the scattering length, revealing that the current frame can exhibit microscopic details of quantum origin that are frequently absent in more macroscopic scenarios.

Journal of Physics Conference Series•Feb 1, 2009•0 citations

Extended Fluid–Dynamics and Collective Motion of Two Trapped Fermion Species with Pairing Interactions

E. Susana Hernández, P. Capuzzi, L. Szybisz

Journal of Low Temperature Physics•Oct 9, 2010•4 citations

Cooper pair polaritons in cold fermionic atoms within a cavity

Amaury Dodel, Alexander Pikovski, Igor Ermakov +4 more

The authors describe a new type of Cooper pairing scenario for degenerate cold fermionic atoms in a cavity. Their results show how the introduction of a photon into the cavity excites an atom into its excited state, and leaves behind a hole in the Fermi sea. The attractive interaction between the excited atoms and the holes producing Cooper pairing.

arXiv:1912.04440•Physical Review Research•Feb 21, 2020•3 citations
We suggest that the extension of the Racah seniority description of strongly interacting fermions in the nuclear shell model is directly generalizable to describe pairing of atoms in cold Fermi systems. We illustrate this by the fermionic pairing in the much studied cold two-component gas of Li atoms. Our pairing interaction is two orders of magnitude stronger than that used in the usual BCS approach. We also explain why the Racah scheme is less applicable to nuclei, and discuss the similarities of the strongly-coupled matter in cold fermion systems and the new form of matter found in RHIC close to T_c.
We present a generalization of fermionic fluiddynamics to the case of two trapped fermion species with a contact interaction. Within a mean field approximation, we derive coupled equations of motion for the particle densities, particle currents, and anomalous pair density. For an inhomogeneous system, the equilibrium situation with vanishing currents is described by a generalized Thomas-Fermi relation that includes the superfluid gap, together with a new nonlocal gap equation that replaces the usual BCS one. These equations are numericaly solved resorting to a local density approximation (LDA). Density and gap profiles are analyzed in terms of the scattering length, revealing that the current frame can exhibit microscopic details of quantum origin that are frequently absent in more macroscopic scenarios.