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HopNumber

HopNumber(integer i, integer j, integer k) -> OperatorFermiNamed​

Returns the hop-number operator (fi†fj+fj†fi)nk(f_{i}^\dagger f_{j} + f_{j}^\dagger f_{i}) n_{k} with support on the specified sites.

Parameters​

  • i: The first hopping site index.
  • j: The second hopping site index.
  • k: The number operator site index.

Example​

HopNumber(0,1,2)*Fbit("0110") // Returns (1 + 0i)|1010>