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NumberNumberPhase

NumberNumberPhase(real angle, integer i, integer j) -> RealOperatorFermiParam​

Returns the two-site number-number phase operator exp⁡(iϕninj)\exp(i \phi n_{i} n_{j}) with support on the specified sites.

Parameters​

  • angle: The phase angle ϕ\phi in radians.
  • i: The first site index.
  • j: The second site index.

Example​

NumberNumberPhase(pi,0,1)*Fbit("1100") // Returns (-1 + 0i)|1100>