Experimental predictions based on LOAF theory in dilute Bose atomic gases

We discuss possible new experimental signatures of correlations in dilute Bose gases with tunable interactions within the framework of LOAF theory. The leading-order auxiliary field (LOAF) theoretical framework is a non-perturbative approximation treating the contributions of the normal and anomalous densities on equal footing [Cooper et al. Phys. Rev. Lett. 105, 240402 (2012)]. LOAF is a conserving and gapless approximation, satisfies Goldstone's theorem, yields a Bose-Einstein transition that is second order, and can be applied outside the regime of weakly-interacting particles.