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NumberNumberNN

NumberNumberNN(const List<integer> sites) -> OperatorFermiNamed​

Legacy alias for NearestNumberSum. Returns the sum of nearest-neighbor number interactions ∑inini+1\sum_{i} n_{i} n_{i+1} with support on the specified sites.

Parameters​

  • sites: The sites where the operator acts.

Example​

NumberNumberNN([0,1,2])*Fbit("0110") // Returns (1 + 0i)|0110>