Phase Diagram of Bose-Fermi Mixtures in One-Dimensional Optical Lattices

2005/12/31 by Lode Pollet, Matthias Troyer, Kris Van Houcke +2 · 4 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #cond-mat.stat-mech

paper · pdf · doi:10.1103/physrevlett.96.190402

published as Phys. Rev. Lett. 96, 190402 (2006) · 5 pages, 5 figures, replaced with published version

openalex publication_date 2006/05/16 · arxiv created 2006/05/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The ground state phase diagram of the one-dimensional Bose-Fermi Hubbard model is studied in the canonical ensemble using a quantum Monte Carlo method. We focus on the case where both species have half filling in order to maximize the pairing correlations between the bosons and the fermions. In case of equal hopping we distinguish among phase separation, a Luttinger liquid phase, and a phase characterized by strong singlet pairing between the species. True long-range density waves exist with unequal hopping amplitudes.

Citations

• Differences between the Tonks regimes in the continuum and on the lattice
• Instabilities in Binary Mixtures of One-Dimensional Quantum Degenerate Gases
• Ordering, metastability and phase transitions in two-dimensional systems
• Spatial quantum noise interferometry in expanding ultracold atom clouds

Cited by

• Supersolid Bose-Fermi Mixtures in Optical Lattices
• Pairing of one-dimensional Bose-Fermi mixtures with unequal masses
• Superfluid and Mott-insulator phases of one-dimensional Bose-Fermi mixtures
• Quantum Monte Carlo study of the visibility of one-dimensional Bose-Fermi mixtures