Homogeneous Atomic Fermi Gases
Name
PhysRevLett.118.123401.pdf
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667.64 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Mukherjee, Biswaroop
Yan, Zhenjie
Patel, Parth Bharatkumar
Hadzibabic, Zoran
Yefsah, Tarik
Struck, Julian
Zwierlein, Martin Wolfram
Date Issued
March 2017
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Mukherjee, Biswaroop et al. “Homogeneous Atomic Fermi Gases.” Physical Revew Letters 118.123401 (Mar. 2017). ©2017 American Physical Society
Version
Final published version
Abstract
We report on the creation of homogeneous Fermi gases of ultracold atoms in a uniform potential. In the momentum distribution of a spin-polarized gas, we observe the emergence of the Fermi surface and the saturated occupation of one particle per momentum state: the striking consequence of Pauli blocking in momentum space for a degenerate gas. Cooling a spin-balanced Fermi gas at unitarity, we create homogeneous superfluids and observe spatially uniform pair condensates. For thermodynamic measurements, we introduce a hybrid potential that is harmonic in one dimension and uniform in the other two. The spatially resolved compressibility reveals the superfluid transition in a spin-balanced Fermi gas, saturation in a fully polarized Fermi gas, and strong attraction in the polaronic regime of a partially polarized Fermi gas.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
MIT-Harvard Center for Ultracold Atoms
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.118.123401
