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Low energy quantum regimes of 1D dipolar Hubbard model with correlated hopping

Contributo in Atti di convegno
Data di Pubblicazione:
2017
Abstract:
We apply the bosonization technique to derive the phase diagram of a balanced unit density two-component dipolar Fermi gas in a one dimensional lattice geometry. The considered interaction processes are of the usual contact and dipolar long-range density-density type together with peculiar correlated hopping terms which can be generated dynamically. Rigorous bounds for the transition lines are obtained in the weak coupling regime. In addition to the standard bosonization description, we derive the low energy phase diagram taking place when part of the interaction is embodied non-perturbatively in the single component Hamiltonians. In this case the Luttinger liquid regime is shown to become unstable with respect to the opening of further gapped phases, among which insulating bond ordered wave and Haldane phases, the latter with degenerate edge modes.
Tipologia CRIS:
04.01 Contributo in Atti di convegno
Keywords:
Correlated hopping Interaction process Luttinger liquids One-dimensional lattice Quantum regimes Single components Transition lines Weak-coupling regime
Elenco autori:
Barbiero, Luca
Link alla scheda completa:
https://iris.cnr.it/handle/20.500.14243/373032
Pubblicato in:
JOURNAL OF PHYSICS. CONFERENCE SERIES (PRINT)
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