Lorentzian symmetries emerge from preserving linear entropy in qubits, yielding SL(2,C) invariants for spectral quantities and the Minkowski metric from singlet-state correlations.
Applying this result to each factor in (A2) then yields Tr(ρρ⋆) = nY i=1 Tr(A1 i ) Tr(A1 j)−Tr(A 1 i A1 j)
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On Lorentzian symmetries of quantum information
Lorentzian symmetries emerge from preserving linear entropy in qubits, yielding SL(2,C) invariants for spectral quantities and the Minkowski metric from singlet-state correlations.