for states composed of pairs near the respective Fermi surfaces obtained using DMC (red) and predicted using exact diagonalisation assuming $({N_\uparrow},{N_\downarrow})=(2,1)$ (blue), $({N_\uparrow},{N_\downarrow})=(3,1)$ (green) and normal FFLO pairing with $({N_\uparrow},{N_\downarrow})=(1,1)$ (grey) against angle of the pair momentum vector. Inset: a copy of [Fig. \[2\_1tri\]]{} with a bright green curve indicating the displayed states of the plot.[]{data-label="cfractan"}](cfracintan){width="0.9\linewidth"}

The red curve in [Fig. \[cfractan\]]{} shows the condensate fraction obtained from DMC at the values of pair momentum indicated by the bright green line in the inset. These values were chosen as they are the ones which involve pairing of fermions at or near their respective Fermi momenta. The red curve in [Fig. \[cfraccomp\]]{} shows the angle-averaged condensate fraction obtained from DMC, where the average is taken over all pair momenta of equal magnitude.

The grey lines show the condensate fraction obtained when only one up and one down-spin fermion is allowed, as in the family of FFLO theories. FF theory predicts a single peak at a particular ${\mathbf{q}}$ [@ffloff], LO theory predicts two peaks at ${\mathbf{q}}$ and $-{\mathbf{q}}$ [@fflolo], and crystalline FFLO theory predicts multiple peaks for all $\lvert{\mathbf{q}}\rvert=q^{}_{\mathrm{FFLO}}$ [@fflorevision1; @fflorevision2]. Our results confirm that having pre-selected for a single up and 