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

@article{Rammelmuller2015FewfermionSI,
  title={Few-fermion systems in one dimension: Ground- and excited-state energies and contacts},
  author={L. Rammelmuller and W. J. Porter and A. Loheac and J. Drut},
  journal={Physical Review A},
  year={2015},
  volume={92},
  pages={013631}
}
  • L. Rammelmuller, W. J. Porter, +1 author J. Drut
  • Published 2015
  • Physics
  • Physical Review A
  • 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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