Sub-Doppler laser cooling of fermionic 40 K atoms

@article{Modugno1999SubDopplerLC,
  title={Sub-Doppler laser cooling of fermionic 40 K atoms},
  author={G. Modugno and Craig Benko and Peter Hannaford and G. Roati and Massimo Inguscio},
  journal={Physical Review A},
  year={1999},
  volume={60}
}
We report laser cooling of fermionic ${}^{40}\mathrm{K}$ atoms, with temperatures down to $(15\ifmmode\pm\else\textpm\fi{}5) \ensuremath{\mu}\mathrm{K},$ for an enriched sample trapped in a magneto-optical trap and additionaly cooled in optical molasses. This temperature is a factor of 10 below the Doppler-cooling limit and corresponds to an rms velocity within a factor of 2 of the lowest realizable rms velocity $(\ensuremath{\sim}{3.5v}_{\mathrm{rec}})$ in three-dimensional optical molasses… Expand
Trapping and cooling of fermionic alkali atoms to quantum degeneracy. Sub-Doppler cooling of Potassium-40 and Lithium-6 in gray molasses
This thesis describes the design, construction and characterization of an apparatus capable of trapping and cooling fermionic atoms of $^{6}$Li and $^{40}$K to ultracold temperatures. The study ofExpand
Gray molasses cooling of $^{39}$K to a high phase-space density
We present new techniques in cooling 39K atoms using laser light close to the D1 transition. First, a new compressed-MOT configuration is taking advantage of gray molasses type cooling induced byExpand
Sub-Doppler laser cooling of 40K with Raman gray molasses on the D2 line
Gray molasses is a powerful tool for sub-Doppler laser cooling of atoms to low temperatures. For alkaline atoms, this technique is commonly implemented with cooling lasers which are blue-detuned fromExpand
Optical trapping of fermionic /sup 40/K atoms
Summary form only only given. We report on trapping of /sup 40/K atoms at low temperatures and high densities in a far-detuned optical trap. The trap is a vertical standing-wave created with aboutExpand
Sub-Doppler laser cooling of fermionic 40K atoms in three-dimensional gray optical molasses
We demonstrate sub-Doppler cooling of 40K on the D1 atomic transition. Using a gray-molasses scheme, we efficiently cool a compressed cloud of 6.5 × 108 atoms from ~4 mK to 20 μK in 8 ms. AfterExpand
Sub-Doppler deep-cooled bosonic and fermionic isotopes of potassium in a compact 2D+–3D MOT set-up
We report the sub-Doppler deep-cooled three-dimensional magneto-optical trap (3D MOT) of the fermionic 40K and bosonic 39K isotopes of potassium loaded by a very compact 2D+ MOT with a novel opticalExpand
Quantum-gas microscope for fermionic atoms.
TLDR
A quantum-gas microscope for fermionic atoms trapped in an optical lattice is realized, which allows one to probe strongly correlated fermions at the single-atom level and enables the direct observation of magnetic order, time-resolved measurements of the spread of particle correlations, and the detection of many-fermion entanglement. Expand
Ultracold Atomic Fermi–Bose Mixtures in Bichromatic Optical Dipole Traps: A Novel Route to Study Fermion Superfluidity
The study of low density, ultracold atomic Fermi gases is a promising avenue to understand fermion superfluidity from first principles. One technique currently used to bring Fermi gases in theExpand
Experiments With Potassium Isotopes
Experiments on cooling and trapping of potassium are strongly motivated by the occurrence of three isotopes: K, K, K with a relative abundance of 93.26%, 0.012% and 6.73%, respectively. K and K areExpand
Ultracold strontium and rubidium: Mixtures, quantum gases and molecules
This thesis describes important steps towards the creation of ultracold RbSr ground-state molecules. These open-shell polar molecules will be employed as a platform for quantum simulation of stronglyExpand
...
1
2
3
...