[Clascomment] OPT-IN: Momentum sharing in imbalanced Fermi systems

[Barry Ritchie]

Larry, I think this is an interesting result and expressed well for a wide audience. 

You could perhaps define k_f in the figure 1 caption so as to make that figure self-contained. 

Some text corrections/suggestions: 

I'm a bit curious as to why fermion is being capitalized; more common usage would be uncapitalized. Similarly, I also would not capitalize final-state interactions.

Is "cross-section" the recommended punctuation in Science? More common, of course, is "cross section". 

Though perhaps obvious, np (meaning neutron-proton) and pp (meaning proton-proton) is never defined. 

In the first sentence of page 1, I'd simply say "Many-body systems composed of two kinds of interacting fermions are ubiquitous in nature." 

There's a misplaced comma near the top of page 3; it should read "In light (A ≤ 12) imbalanced nuclei, this picture ..." 

The sentence after that should read "The calculated momentum distributions show that the minority nucleons have larger average kinetic energy than the majority (see Table S-VI in [7])."

In paragraph 2 of page 3, should read "wide-ranging implications"