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Information in quantum mechanics

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Reconstruction programs, qubits, entanglement: quantum information reframes QM as a theory of a different kind of information, with entanglement as a resource and its own theorems. Reconstructions of QM try to derive quantum mechanics from a few information-theoretic axioms.

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Explain the difference between a qubit and a classical bit in physical terms, not metaphors.State the no-cloning theorem and say why it matters.Explain Bell's theorem from the information-theoretic perspective (what classical information can't do that quantum can).State the PBR theorem and what it rules out.Explain the reconstruction program's motivation: why this theory and not another?

resources

●Quantum Computing Since Democritus— Scott Aaronsonanchor · book
○Quantum Computation and Quantum Information— Michael A. Nielsen & Isaac L. Chuangcompanion · book
○Quantum theory from five reasonable axioms— Lucien Hardycompanion · paper

sessions

unlocks Unit 7 (it from qubit). Full engagement with the Quantum page's Stage 3.

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