Population imbalance in the extended Fermi-Hubbard model
arXiv:1512.00338 · doi:10.1103/PhysRevB.94.075116
Abstract
We study the interplay between population imbalance in a two-component fermionic system and nearest-neighbor interaction using matrix product states method. Our analysis reveals the existence of a new type of Fulde-Ferrell-Larkin-Ovchinnikov phase in the presence of competing interactions. Furthermore, we find distinct evidence for the presence of hidden order in the system. We present an effective model to understand the emergent oscillations in the string correlations due to the imbalance, and show how they can become an efficient tool to investigate systems with imbalance.
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Cited by in corpus (7)
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- Open source Matrix Product States: Opening ways to simulate entangled many-body quantum systems in one dimension
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