Many Body Approach for Quartet Condensation in Strong Coupling

Abstract

The theory for condensation of higher fermionic clusters is developed. Fully selfconsistent nonlinear equations for the quartet order parameter in strongly coupled fermionic systems are established and solved. The breakdown of the quasiparticle picture is pointed out. Derivation of numerically tractable approximation is described. The momentum projected factorisation ansatz of Ref. \cite{slr09} for the order parameter is employed again. As a definite example the condensation of $\alpha$ particles in nuclear matter is worked out.

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Cited by in corpus (21)

• The BCS-BEC crossover: From ultra-cold Fermi gases to nuclear systems
• Bound clusters on top of doubly magic nuclei
• Alpha particle clusters and their condensation in nuclear systems
• Nuclear Alpha-Particle Condensates
• Equation of Motion Method to strongly correlated Fermi systems and Extended RPA approaches
• Critical temperature for $\alpha$-particle condensation in asymmetric nuclear matter
• Multimer formation in 1D two-component gases and trimer phase in the asymmetric attractive Hubbard model
• A quartet BCS-like theory
• Cooper Triples in Attractive Three-Component Fermions: Implication for Hadron-Quark Crossover
• Alpha-particle condensation: a nuclear quantum phase transition
• Cooper quartet correlations in infinite symmetric nuclear matter
• Biexciton-like quartet condensates in an electron-hole liquid
• Tensor optimized Fermi sphere method for nuclear matter -- power series correlated wave function and a cluster expansion
• Density-Induced Hadron-Quark Crossover via the Formation of Cooper Triples
• Alpha-Particle condensation in nuclear systems: present status and perspectives
• Andreev reflection in normal metal/charge-4e superconductor junctions
• Phase Separation of Multi-Component Bose-Einstein Condensates of Trapped Atoms and Molecules with a Homonuclear Feshbach Resonance
• Theory for Quartet Condensation in Fermi Systems with Applications to Nuclei and Nuclear Matter
• Quartet correlations near the surface of $N=Z$ nuclei
• Cold atoms beyond atomic physics
• Bose-Einstein condensation in finite drops of alpha particles