A non-Gaussian variational ansatz computes 2D Fermi polaron ground-state energy, residue, and spectral functions, agreeing qualitatively with Monte Carlo while revealing oscillatory or relaxational dynamics to the molecular state.
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Lattice AFQMC calculations of the polaron equation of state at unitarity and across scattering lengths, plus neutron polaron results, provide benchmarks for cold-atom and nuclear theory.
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Efficient variational approach to the Fermi polaron problem in two dimensions, both in and out of equilibrium
A non-Gaussian variational ansatz computes 2D Fermi polaron ground-state energy, residue, and spectral functions, agreeing qualitatively with Monte Carlo while revealing oscillatory or relaxational dynamics to the molecular state.
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Ab initio study of the neutron and Fermi polarons on the lattice
Lattice AFQMC calculations of the polaron equation of state at unitarity and across scattering lengths, plus neutron polaron results, provide benchmarks for cold-atom and nuclear theory.