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Résumé |
Quantum Darwinism is a process that aims to explain the emergence of objectivity from quantum mechanics.
We present a framework for understanding quantum Darwinian using quantum error correcting codes. We
show that the broadcasting process of classical information can be mapped to the encoding process of a
quantum code, while the proliferation of classical information is related to its weight enumerator, which
governs the redundancy of the encoded information. Leveraging this connection, we introduce an operator
algebra language for analyzing the emergence of classical plateaus and the proliferation of classical
information which are defining features of quantum Darwinism.
We further provide explicit examples of QD toy models by constructing families of Calderbank-Shor-Steane
codes. Embedding them into brickwork unitary dynamics, we show "objectivity cones" akin to lightcones
emerge. |
