Observation of Pauli Crystals

• Verfasst von: Holten, Marvin [VerfasserIn]
• Verfasst von: Bayha, Luca [VerfasserIn]
• Verfasst von: Subramanian, Keerthan [VerfasserIn]
• Verfasst von: Heintze, Carl [VerfasserIn]
• Verfasst von: Preiss, Philipp [VerfasserIn]
• Verfasst von: Jochim, Selim [VerfasserIn]
• Titel: Observation of Pauli Crystals
• Verf.angabe: Marvin Holten, Luca Bayha, Keerthan Subramanian, Carl Heintze, Philipp M. Preiss, and Selim Jochim
• E-Jahr: 2021
• Jahr: 13 January 2021
• Teil: volume:126
• Teil: year:2021
• Teil: number:2
• Fussnoten: Gesehen am 02.03.2021
• Titel Quelle: Enthalten in: Physical review letters
• Ort Quelle: College Park, Md. : APS, 1958
• Jahr Quelle: 2021
• Band/Heft Quelle: 126(2021,2) Artikel-Nummer 020401, 5 Seiten
• ISSN Quelle: 1079-7114
• DOI: doi:10.1103/PhysRevLett.126.020401
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1750137801

Abstract

The Pauli exclusion principle is a fundamental law underpinning the structure of matter. Because of their antisymmetric wave function, no two fermions can occupy the same quantum state. Here, we report on the direct observation of the Pauli principle in a continuous system of up to six particles in the ground state of a two-dimensional harmonic oscillator. To this end, we sample the full many-body wave function by applying a single atom resolved imaging scheme in momentum space. We find so-called Pauli crystals as a manifestation of higher order correlations. In contrast to true crystalline phases, these unique high-order density correlations emerge even without any interactions present. Our work lays the foundation for future studies of correlations in strongly interacting systems of many fermions.