Physics:Quantum No-cloning theorem

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The no-cloning theorem: an unknown quantum state cannot be copied perfectly by a physical operation.

Quantum No-cloning theorem is a planned ScholarlyWiki page in the Quantum Collection about the no-cloning theorem in quantum information.


Overview

Placeholder: explain why linear quantum evolution forbids perfect copying of an arbitrary unknown quantum state.

Key ideas

Placeholder: cover linearity, unknown states, quantum copying limits, cryptography, measurement disturbance.

Statement of the theorem

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

Simple linearity argument

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

Consequences for cryptography

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

Relation to measurement

Placeholder: develop this section with definitions, examples, formulas, and links to related Quantum Collection pages.

See also

Table of contents (212 articles)

Index

Full contents

References


Author: Harold Foppele


Source attribution: Physics:Quantum No-cloning theorem

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