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ckoerber / luescher-nd

This repository supports the publication https://arxiv.org/abs/1912.04425
https://ckoerber.github.io/luescher-nd/
BSD 3-Clause "New" or "Revised" License
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Emphasize Nuclear Interaction in Introduction + Conclusion #39

Open evanberkowitz opened 4 years ago

evanberkowitz commented 4 years ago

We mostly focus on 'unitary' fermions---why should anyone care? We need to emphasize that the nuclear system has very long scattering lengths, and that unitary fermions are a good starting point.

ckoerber commented 4 years ago

The introduction now (PR #43) starts with

Because of their universal behavior, studying \emph{unitary fermions} helps to analyze the behavior of other strongly interacting systems found in nature. For example, nuclear interactions in the deuteron channel have an extreme behavior close to the zero-energy threshold mimicking unitarity, and trapped ultracold atoms can be tuned to unitarity by applying external magnetic fields and leveraging Feshbach resonances.

Does this match the point or should we elaborate more?

ckoerber commented 4 years ago

I've also added the concluding remark in the introduction:

While this prescription is not universally applicable to a general interaction, learnings from this lattice improvement are transferrable (by perturbation theory) to other interactions with significant contributions from by contact terms--like chiral lattice interactions which are commonly utilized in "\texit{ab-initio}" frameworks.