A simple derivation of the strong subadditivity inequalities
classification
🪐 quant-ph
cond-mat.stat-mechgr-qchep-th
keywords
derivationinequalitiessimplestrongsubadditivitygivemakenote
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In this short note, we give a simple derivation of the strong subadditivity inequalities: S(13) + S(23) \ge S(1) + S(2) and S(12) + S(23) \ge S(2) + S(123). The simplicity is due to the way we represent the quantum systems. We make a few remarks about such a representation.
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