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exAClior / RGRDMT.jl

Renormalization Group Reduced Density Matrix Theory
MIT License
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Pretty Good Ground State Computation #6

Closed exAClior closed 2 months ago

exAClior commented 2 months ago

During the construction of Isomtetry, we will need the ground state for a hamiltonian. The problems are

  1. Single site methods don't converge well enough
  2. Double site methods cannot retrieve single site InfiniteMPS
  3. Symmetry encoded state cannot be put back to regualr InfiniteMPS easily.

Do we have to settle for a pretty good ground state?

exAClior commented 2 months ago

They used sublattice rotation.