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Support for symmetries

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@chaserileyroberts chaserileyroberts released this 02 Apr 19:31
· 232 commits to master since this release
dec3b12

Added a new symmetric backend. Current symmetries include U1 and Z2, but more will be added in the very near future.

  • Added various classes for the symmetric backend including:
    BlockSparseTensor, ChargeArray, Index, U1Charge, Z2Charge, and BaseCharge.
  • Added tn.replicate_nodes as a cleaner API to tn.copy()