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6 exact results for “quantum”

LIMIT

conductance quantum

LR-001057 Physics The 2022 CODATA recommended value of conductance quantum, retained with its published standard uncertainty.

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inverse of conductance quantum

LR-001165 Physics The 2022 CODATA recommended value of inverse of conductance quantum, retained with its published standard uncertainty.

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mag. flux quantum

LR-001193 Physics The 2022 CODATA recommended value of mag. flux quantum, retained with its published standard uncertainty.

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Perfect cloning of an arbitrary unknown quantum state

LR-DRAFT-NO-CLONING Quantum Information Universal perfect cloning of an arbitrary unknown quantum state is impossible.

80%LIMIT

Margolus–Levitin quantum speed limit

LR-DRAFT-ML Physics τ ≥ πℏ/[2(E−E₀)] for orthogonalization of an isolated quantum state.

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Holevo accessible-information bound

LR-DRAFT-HOLEVO Quantum Information Accessible classical information from an ensemble is bounded by its Holevo quantity.

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