Tensor of coherences parametrization of multiqubit density operators for entanglement characterization
Tensor of coherences parametrization of multiqubit density operators for entanglement characterization
For multiqubit densities, the tensor of coherences (or Stokes tensor) is a real parameterization obtained by the juxtaposition of the affine Bloch vectors of each qubit. While it maintains the tensorial structure of the underlying space, it highlights the pattern of correlations, both classical and quantum, between the subsystems and, …