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arXiv · 1510.04599

Microscopic Observation of Pauli Blocking in Degenerate Fermionic Lattice Gases

Ahmed Omran·Martin Boll·Timon Hilker·Katharina Kleinlein·Guillaume Salomon·Immanuel Bloch·Christian Gross
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Abstract

The Pauli exclusion principle is one of the most fundamental manifestations of quantum statistics. Here, we report on its local observation in a spin-polarized degenerate gas of fermions in an optical lattice. We probe the gas with single-site resolution using a new generation quantum gas microscope avoiding the common problem of light induced losses. In the band insulating regime, we measure a strong local suppression of particle number fluctuations and a low local entropy per atom. Our work opens a new avenue for studying quantum correlations in fermionic quantum matter both in and out of equilibrium.

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Ahmed Omran, Martin Boll, Timon Hilker, Katharina Kleinlein, Guillaume Salomon, Immanuel Bloch, Christian Gross. 2015-10-15. Microscopic Observation of Pauli Blocking in Degenerate Fermionic Lattice Gases. https://doi.org/10.1103/physrevlett.115.263001

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