ToOperator

H, BitMasks = ResponseFunction.ToOperator(G) Creates a tight binding Hamiltonian $H$ in operator form from a response function $G$. See ResponseFunction.ToTigthbinding for more information on how the Hamiltonian is obtained from $G$. BitMasks contains a table relating the indices to physical meaningful subspaces. See ResponseFunction.CreateBitMasks for more information.

Possible options are

  • AddSpin: Boolean, if true the Hilbert space is doubled with the even indices (starting at 0) related to spin down and the odd (starting at 1) to spin up.
  • Fermion shift: Integer defining a shift added to all indices used in the operator.

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