Microwave preparation of two-dimensional fermionic spin mixtures
arXiv:1810.01434 · doi:10.1088/1367-2630/aafb89
Abstract
We present a method for preparing a single two-dimensional sample of a two-spin mixture of fermionic potassium in a single antinode of an optical lattice, in a quantum-gas microscope apparatus. Our technique relies on spatially-selective microwave transitions in a magnetic field gradient. Adiabatic transfer pulses were optimized for high efficiency and minimal atom loss and heating due to spin-changing collisions. We have measured the dynamics of those loss processes, which are more pronounced in the presence of a spin mixture. As the efficient preparation of atoms in a single antinode requires a homogeneous transverse magnetic field, we developed a method to image and minimize the magnetic field gradients in the focal plane of the microscope.
arXiv comment8 pages, 5 figures
References in corpus (26)
- Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
- Exploring the many-body localization transition in two dimensions
- Berezinskii-Kosterlitz-Thouless Crossover in a Trapped Atomic Gas
- Experimental realization of a long-range antiferromagnet in the Hubbard model with ultracold atoms
- Single-atom imaging of fermions in a quantum-gas microscope
- Spin and Charge Resolved Quantum Gas Microscopy of Antiferromagnetic Order in Hubbard Chains
- A Quantum Gas Microscope for Fermionic Atoms
- Observation of Spatial Charge and Spin Correlations in the 2D Fermi-Hubbard Model
- Site-resolved Imaging of Fermionic Lithium-6 in an Optical Lattice
- Site-resolved measurement of the spin-correlation function in the Hubbard model
- Three-body recombination at large scattering lengths in an ultracold atomic gas
- Observation of a 2D Bose-gas: from thermal to quasi-condensate to superfluid
- Microscopic Observation of Pauli Blocking in Degenerate Fermionic Lattice Gases
- Site-resolved imaging of a fermionic Mott insulator
- Imaging optical frequencies with 100 Hz precision and 1.1 m resolution
- Imaging and addressing of individual fermionic atoms in an optical lattice
- Observation of canted antiferromagnetism with ultracold fermions in an optical lattice
- Observation of 2D fermionic Mott insulators of K with single-site resolution
- The equilibrium state of a trapped two-dimensional Bose gas
- Imaging of microwave fields using ultracold atoms
- Loading and compression of a single two-dimensional Bose gas in an optical accordion
- Dynamic optical lattices: two-dimensional rotating and accordion lattices for ultracold atoms
- Hybrid 2D surface trap for quantum simulation
- Criteria for 2D kinematics in an interacting Fermi gas
- Sub-Doppler laser cooling of 40K with Raman gray molasses on the D2 line
- Adiabatic Quantum State Manipulation of Single Trapped Atoms