Complementarity in Quantum Systems D

@inproceedings{Petz2008ComplementarityIQ,
  title={Complementarity in Quantum Systems D},
  author={E Petz},
  year={2008}
}
Reduction of a state of a quantum system to a subsystem gives partial quantum information about the true state of the total system. Two subalgebras A1 and A2 of B(H) are called complementary if the traceless subspaces of A1 and A2 are orthogonal (with respect to the Hilbert-Schmidt inner product). When both subalgebras are maximal Abelian, then the concept reduces to complementary observables or mutually unbiased bases. In the paper several characterizations of complementary subalgebras are… CONTINUE READING
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