Exact closed-form analytic wave functions in two dimensions: Contact-interacting fermionic spinful ultracold atoms in a rapidly rotating trap

Abstract

Exact two-dimensional analytic wave functions for an arbitrary number $N$ of contact-interacting lowest-Landau-level (LLL) spinful fermions are derived with the use of combined numerical and symbolic computational approaches via analysis of exact Hamiltonian numerical diagonalization data. Closed-form analytic expressions are presented for two families of zero-interaction-energy states at given total angular momentum and total spin $0\le S\le N/2$ in the neighborhood of the $\nu =1$ filling, covering the range from the maximum density droplet to the first quasihole. Our theoretical predictions for higher-order spatial and momentum correlations reveal intrinsic polygonal, multi-ring crystalline-type structures, which can be tested with ultracold-atom experiments in rapidly rotating traps, simulating quantum Hall physics (including quantum LLL skyrmions).

Accepted for publication as a letter in Phys. Rev. Research. 12 pages with 3 color figures, including the Supplemental Material. For related papers, see https://sites.gatech.edu/cyannouleas/about/

References in corpus (11)

• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• Time dependent impurity in ultracold fermions: orthogonality catastrophe and beyond
• Collective Modes and Skyrmion Excitations in Graphene SU(4) Quantum Hall Ferromagnets
• Interference pattern and visibility of a Mott insulator
• Soluble Models of Strongly Interacting Ultracold Gas Mixtures in Tight Waveguides
• Exact solution for infinitely strongly interacting Fermi gases in tight waveguides
• Rapidly rotating boson molecules with long or short range repulsion: an exact diagonalization study
• Bosonic molecules in rotating traps
• Hard-Wall Confinement of a Fractional Quantum Hall Liquid
• Stirring trapped atoms into fractional quantum Hall puddles
• Skyrmion Ground States of Rapidly Rotating Few-Fermion Systems