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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.
Original language | English |
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Article number | 013020 |
Number of pages | 10 |
Journal | New Journal of Physics |
Volume | 21 |
Early online date | 2 Jan 2019 |
DOIs | |
Publication status | Published - 25 Jan 2019 |
Keywords
- ultracold atoms
- quantum gases
- quantum simulation
- optical lattices
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Data for: "Microwave preparation of two-dimensional fermionic spin mixtures"
Peaudecerf, B. (Creator), Kuhr, S. (Supervisor), Haller, E. (Contributor), Andia, M. (Creator) & Brown, M. (Creator), University of Strathclyde, 6 Feb 2019
DOI: 10.15129/496687b8-08e0-421e-8802-49c343aa9c7a
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