Hadron wave functions as a probe of a two-color baryonic medium

The properties of the ground state of two-color QCD at non-zero baryon chemical potential mu present an interesting problem in strongly interacting gauge theory; in particular the nature of the physically relevant degrees of freedom in the superfluid phase in the post-onset regime mu > m(pi)/2 still needs clarification. In this study we present evidence for in-medium effects at high mu by studying the wave functions of mesonic and diquark states using orthodox lattice simulation techniques, made possible by the absence of a sign problem for the model with N-f = 2. Our results show that beyond onset the spatial extent of hadrons decreases as mu grows, and that the wave function profiles are consistent with the existence of a dynamically gapped Fermi surface in this regime.