Measuring Bias via the Consistency Relations of the Large Scale
  Structure
  Consistency Relations (CR) for the Large Scale Structure are exact equalities
between correlation functions of different order. These relations descend from
the equivalence principle and hold for primordial perturbations generated by
single-field models of inflation. They are not affected by nonlinearities and
hold also for biased tracers and in redshift space. We show that Baryonic
Acoustic Oscillations (BAO) in the bispectrum (BS) in the squeezed limit are
suppressed with respect to those in the power spectrum (PS) by a coefficient
that depends on the BS configuration and on the bias parameter (and, in
redshift space, also on the growth rate). We test these relations using large
volume N-body simulations and show that they provide a novel way to measure
large scale halo bias and, potentially, the growth rate. Since bias is obtained
by comparing two directly observable quantities, the method is free from
theoretical uncertainties both on the computational scheme and on the
underlying cosmological model.
