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Complementarity relations for the 15 independent binary questions (projectors onto +1 eigenspaces of Pauli operators) of two qubits, reconstructed through the limited information and complementarity rules. The red arrows represent an 'information swap' that leaves certain 'informational charges' invariant and corresponds to a generator of PSU(4), the projective unitary group of time evolutions of two-qubit density matrices.
Complementarity relations for the 15 independent binary questions (projectors onto +1 eigenspaces of Pauli operators) of two qubits, reconstructed through the limited information and complementarity rules. The red arrows represent an 'information swap' that leaves certain 'informational charges' invariant and corresponds to a generator of PSU(4), the projective unitary group of time evolutions of two-qubit density matrices.
Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0).
