Few-fermion systems in one dimension: Ground- and excited-state energies and contacts

L. Rammelmüller; W. J. Porter; A. C. Loheac; J. E. Drut

doi:10.1103/physreva.92.013631

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arXiv · 1505.02131

Few-fermion systems in one dimension: Ground- and excited-state energies and contacts

L. Rammelmüller·W. J. Porter·A. C. Loheac·J. E. Drut

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Abstract

Using the lattice Monte Carlo method, we compute the energy and Tan's contact in the ground state as well as the first excited state of few- to many-fermion systems in a one-dimensional periodic box. We focus on unpolarized systems of N=4,6,...,12 particles, with a zero-range interaction, and a wide range of attractive couplings. In addition, we provide extrapolations to the infinite-volume and thermodynamic limits.

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L. Rammelmüller, W. J. Porter, A. C. Loheac, J. E. Drut. 2015-08-04. Few-fermion systems in one dimension: Ground- and excited-state energies and contacts. https://doi.org/10.1103/physreva.92.013631

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