EFT study of ^4He trimers and tetramers around unitarity limit yields binding energies and radii that converge to phenomenological potential results after including finite-range and four-body corrections.
Weakly Bound Cluster States of Efimov Character
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abstract
We study the behavior of weakly bound clusters and their relation to the well-known three-body Efimov states. We adopt a model to describe universal behavior of strongly interacting bosonic systems, and we test its validity by reproducing predictions of three- and four-body universal states. Then, we extend our study to larger systems and identify a series of universal cluster states that can be qualitatively interpreted as adding one particle at a time to an Efimov trimer. The properties of these cluster states and their experimental signatures are discussed.
years
2026 2verdicts
UNVERDICTED 2representative citing papers
Exploratory refinement of universal n-body spectra predictions using probability distributions of correlation functions via lattice methods and analytic expansions.
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Three- and four-boson systems expanded around the unitarity limit: Application to $^4$He
EFT study of ^4He trimers and tetramers around unitarity limit yields binding energies and radii that converge to phenomenological potential results after including finite-range and four-body corrections.
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Determining universal spectra from probability distributions
Exploratory refinement of universal n-body spectra predictions using probability distributions of correlation functions via lattice methods and analytic expansions.