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Showing 1 to 3 of 3 for “"pairing instability"”.
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Communal pairing in Fermi gases with attractive interactions
… fermion gas are known to induce a Cooper pairing instability where the fermion pairs have zero net momentum, leading to BCS superconductivity. Extensions for spin-imbalanced systems include breached superfluids, Fulde–Ferrell–Larkin–Ovchinnikov theory, and pair density wave theory. We …
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Collective Phenomena in Excitonic Quantum Matter
… in- and out-of-equilibrium: a hypothesized pairing instability leads to the macroscopic condensation of “excitonic insulators” in small-bandgap materials, with quantum coherence and possible super-transport persisting up to room temperature. Alternatively, in large-bandgap semiconductors, …
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Numerical methods for cold atom systems
… parameters. In the final part, we study the pairing and ferromagnetic instabilities in systems of spin-1/2 fermions. To interpret a recent experimental study of the possibility of itinerant ferromagnetism in cold atom systems, we investigate the energy spectrum of a system of four spin-1/2 …