Abstract
We perform a zero temperature analysis of a non-Abelian lattice gauge model corresponding to an SU(3) Yang-Mills theory in at low energies. Specifically, we characterize the model ground states via gauge-invariant matrix product states, identifying its phase diagram at finite density as a function of the matter-gauge interaction coupling, the quark filling, and their bare mass. Overall, we observe an extreme robustness of baryons: For positive free-field energy couplings, all detected phases exhibit colorless quasiparticles, a strong numerical hint that QCD does not deconfine in 1D. Additionally, we show that, having access to finite-density properties, it is possible to study the stability of composite particles, including multibaryon bound states such as the deuteron.
- Received 23 January 2019
DOI:https://doi.org/10.1103/PhysRevD.100.074512
© 2019 American Physical Society