MPS simulations of the Gross-Neveu-Wilson model at finite density reveal topological crystals for weak coupling and soliton lattices for stronger coupling due to Hilbert-space fragmentation, with quasi-spirals off the symmetry line.
Witten, Baryons in the 1n expansion, Nuclear Physics B 160, 57 (1979)
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Topological crystals and soliton lattices in a Gross-Neveu model with Hilbert-space fragmentation
MPS simulations of the Gross-Neveu-Wilson model at finite density reveal topological crystals for weak coupling and soliton lattices for stronger coupling due to Hilbert-space fragmentation, with quasi-spirals off the symmetry line.