Universal spectrum of isolated three-body resonances
Ludovic Pricoupenko
TL;DR
This paper derives the exact wavefunction for isolated three-body resonances with zero-range interactions, explores their universal spectrum across scattering lengths, and demonstrates universality through finite-range models.
Contribution
It provides the first exact wavefunction for such three-body resonances and analyzes their universal spectral properties.
Findings
Exact wavefunction derived for three-body resonances at finite scattering length
Universal spectrum characterized as a function of scattering length
Universality confirmed via finite-range interaction models
Abstract
The exact wavefunction of an isolated three-body resonance at finite scattering length is obtained for two identical particles interacting with another one via a pairwise zero-range potential. The corresponding universal spectrum is studied as a function of the scattering length. The universality of the results is illustrated by considering a model with finite-range interactions.
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