  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 wavefunctions 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 wavefunction
profiles are consistent with the existence of a dynamically-gapped Fermi
surface in this regime.
