Enlarging and cooling the Néel state in an optical lattice
arXiv:1204.0018 · doi:10.1103/PhysRevA.86.023606
Abstract
We propose an experimental scheme to favor both the realization and the detection of the Néel state in a two-component gas of ultracold fermions in a three-dimensional simple-cubic optical lattice. By adding three compensating Gaussian laser beams to the standard three pairs of retroreflected lattice beams, and adjusting the relative waists and intensities of the beams, one can significantly enhance the size of the Néel state in the trap, thus increasing the signal of optical Bragg scattering. Furthermore, the additional beams provide for adjustment of the local chemical potential and the possibility to evaporatively cool the gas while in the lattice. Our proposals are relevant to other attempts to realize many-body quantum phases in optical lattices.
8 pages, 10 figures (significantly revised text and figures)
References in corpus (6)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Thermodynamics of the 3D Hubbard model on approach to the Neel transition
- Slow Mass Transport and Statistical Evolution of An Atomic Gas Across the Superfluid-Mott Insulator Transition
- Interaction-Induced Adiabatic Cooling for Antiferromagnetism in Optical Lattices
- Thermodynamics of the three-dimensional Hubbard model: Implications for cooling cold atomic gases in optical lattices
- Canted Antiferromagnetic Order of Imbalanced Fermi-Fermi mixtures in Optical Lattices by Dynamical Mean-Field Theory
Cited by in corpus (12)
- Observation of antiferromagnetic correlations in the Hubbard model with ultracold atoms
- Non-standard Hubbard models in optical lattices: a review
- Cooling and thermometry of atomic Fermi gases
- Floquet Edge States with Ultracold Atoms
- Compressibility of a fermionic Mott insulator of ultracold atoms
- Light scattering and dissipative dynamics of many fermionic atoms in an optical lattice
- Ultracold Spin-Orbit Coupled Bose-Einstein Condensate in a Cavity: Route to Magnetic Phases Through Cavity Transmission
- Finite-temperature superconducting correlations of the Hubbard model
- Minimizing nonadiabaticities in optical-lattice loading
- Cooling schemes for two-component fermions in layered optical lattices
- Density redistribution effects in fermionic optical lattices
- Interaction-Induced Gradients Across a Confined Fermion Lattice