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Part III · Planned

Quantum Information and Representation Theory

Leditzky's representation-theoretic QIT notes organize one shared state/channel foundation followed by symmetry, Schur–Weyl and information-theoretic applications.

Read the curriculum anchor →

Truth boundary

Placement is not proof

This catalog is a textbook placement map. A listed source, upstream Lean cluster, or extended chapter is not a local ASPBE theorem unless an exact compiled declaration is linked separately.

OpenAI Math boundary. Audited clusters are pinned source or adapter inputs. Their upstream Lean 4.34.1 results are not local Lean 4.33.0 declarations until separately ported and compiled. Lean 4.33.0 is the migration target; this reader release preserves the published proof tree and records its actual version in the build evidence.

Graph-driven chapter map

Shared foundations first, source-specific consumers later

qit-states-measurements

States, density operators and measurements

Choose one canonical finite-dimensional state, positive-operator, Born-rule and POVM layer before importing downstream results.

Planned
Inspect pinned upstream memory (1 routes)

OpenAI Math snapshot adc7f1241b42 · upstream Lean 4.34.1 · local migration target 4.33.0. Source placement does not certify an adapter, the whole chapter, or an SP/BE construction.

  • oai-entanglement

    InformationTheory/Entanglement

    candidate foundational QIT spine; declaration-by-declaration admission only

    Upstream evidence: lean-present-not-single-comparator-audited. adapter-backed. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

qit-composites

Composite systems, partial trace and purification

Freeze subsystem order and tensor conventions; purification and dilation remain non-unique representative constructions.

Planned
Inspect pinned upstream memory (1 routes)

OpenAI Math snapshot adc7f1241b42 · upstream Lean 4.34.1 · local migration target 4.33.0. Source placement does not certify an adapter, the whole chapter, or an SP/BE construction.

  • oai-entanglement

    InformationTheory/Entanglement

    candidate foundational QIT spine; declaration-by-declaration admission only

    Upstream evidence: lean-present-not-single-comparator-audited. adapter-backed. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

qit-channels-distances

Channels, Choi maps, distances and operational tests

Completely positive maps, Kraus/Choi representations, trace/fidelity conventions and contractivity become shared nodes.

Planned
Inspect pinned upstream memory (3 routes)

OpenAI Math snapshot adc7f1241b42 · upstream Lean 4.34.1 · local migration target 4.33.0. Source placement does not certify an adapter, the whole chapter, or an SP/BE construction.

  • oai-amplitude-damping

    InformationTheory/AmplitudeDamping

    quantum channel, entropy, Holevo information, and operational capacity

    Upstream evidence: comparator-backed. source-route. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

  • oai-entanglement

    InformationTheory/Entanglement

    candidate foundational QIT spine; declaration-by-declaration admission only

    Upstream evidence: lean-present-not-single-comparator-audited. adapter-backed. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

  • oai-ppt-square

    Analysis/Quantum/PPTSquare

    CP/PPT/trace-preserving/entanglement-breaking channel geometry and an explicit PPT-square counterexample route

    Upstream evidence: lean-present-not-comparator-audited. adapter-backed. Not local admission.

    Next boundary: admit only after canonical CP, PPT, trace-preserving, Choi and entanglement-breaking adapters are fixed

qit-representation-foundations

Finite-group and unitary representation foundations

Group actions, representations, characters, averaging and fixed spaces are admitted only after manuscript-specific namespaces are purified.

Planned
Inspect pinned upstream memory (1 routes)

OpenAI Math snapshot adc7f1241b42 · upstream Lean 4.34.1 · local migration target 4.33.0. Source placement does not certify an adapter, the whole chapter, or an SP/BE construction.

  • oai-young-unitary-infrastructure

    RepresentationTheory/Young · RepresentationTheory/YoungSymmetry · RepresentationTheory/FiniteUnitary

    Young/Specht and finite-unitary representation ingredients relevant to Schur-Weyl prerequisites

    Upstream evidence: lean-present-not-comparator-audited. adapter-backed. Not local admission.

    Next boundary: purify manuscript-specific namespaces and assumptions, then admit only source-independent declarations with a real textbook consumer

qit-schur-weyl

Young diagrams, Specht modules and Schur–Weyl duality

Build the symmetric-group/unitary-group bridge needed by the quantum method of types; advanced Saxl and Foulkes–Howe results remain extensions, not prerequisites.

Planned
Inspect pinned upstream memory (3 routes)

OpenAI Math snapshot adc7f1241b42 · upstream Lean 4.34.1 · local migration target 4.33.0. Source placement does not certify an adapter, the whole chapter, or an SP/BE construction.

  • oai-young-unitary-infrastructure

    RepresentationTheory/Young · RepresentationTheory/YoungSymmetry · RepresentationTheory/FiniteUnitary

    Young/Specht and finite-unitary representation ingredients relevant to Schur-Weyl prerequisites

    Upstream evidence: lean-present-not-comparator-audited. adapter-backed. Not local admission.

    Next boundary: purify manuscript-specific namespaces and assumptions, then admit only source-independent declarations with a real textbook consumer

  • oai-saxl

    RepresentationTheory/Saxl

    advanced symmetric-group and Specht-module route, not a prerequisite for Schur-Weyl

    Upstream evidence: comparator-backed. source-route. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

  • oai-foulkes-howe

    RepresentationTheory/FoulkesHowe

    advanced plethysm/Foulkes-Howe route, not a prerequisite for quantum representation theory

    Upstream evidence: comparator-backed. source-route. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

qit-symmetry-applications

Invariant states, de Finetti, cloning and spectrum estimation

Consume the shared QIT and representation layers without turning conceptual symmetry correspondences into Lean dependencies.

Planned

qit-capacity-entanglement

Capacity, entanglement, secret key and games

Amplitude-damping capacity, entangled games and dimension-ten zero-key constructions are source routes above canonical state/channel adapters.

Planned
Inspect pinned upstream memory (5 routes)

OpenAI Math snapshot adc7f1241b42 · upstream Lean 4.34.1 · local migration target 4.33.0. Source placement does not certify an adapter, the whole chapter, or an SP/BE construction.

  • oai-amplitude-damping

    InformationTheory/AmplitudeDamping

    quantum channel, entropy, Holevo information, and operational capacity

    Upstream evidence: comparator-backed. source-route. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

  • oai-entangled-games

    Probability/EntangledGames

    finite-dimensional entangled-game, measurement, purification and repeated-game information route

    Upstream evidence: comparator-backed. adapter-backed. Not local admission.

    Next boundary: reuse only after state/measurement/trace-distance adapters are canonical

  • oai-secret-key

    InformationTheory/SecretKey

    advanced QIT / private-key route after foundation adapters

    Upstream evidence: lean-present-not-comparator-audited. source-route. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

  • oai-dimension-ten-secret-key-bridge

    InformationTheory/DimensionTen

    companion density-state, entanglement, Choi-transfer and finite readout/key construction above the DimensionTen and SecretKey layers

    Upstream evidence: lean-present-not-comparator-audited. source-route. Not local admission.

    Next boundary: keep this as a downstream consumer; do not promote its local density or separability wrappers as the shared QIT foundation

  • oai-soft-channel

    InformationTheory/SoftChannel

    classical information-theory candidate substrate, not quantum-labelled by default

    Upstream evidence: comparator-backed. canonical-leaf. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

qit-optics-counterexamples

Extended chapter: quantum optics and channel counterexamples

Photon-number entropy, PPT-square phenomena and explicit channel geometry are advanced consumers, not foundational definitions.

Planned
Inspect pinned upstream memory (3 routes)

OpenAI Math snapshot adc7f1241b42 · upstream Lean 4.34.1 · local migration target 4.33.0. Source placement does not certify an adapter, the whole chapter, or an SP/BE construction.

  • oai-photon-number

    InformationTheory/PhotonNumber

    quantum optics and entropy photon-number route

    Upstream evidence: comparator-backed. source-route. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

  • oai-ppt-square

    Analysis/Quantum/PPTSquare

    CP/PPT/trace-preserving/entanglement-breaking channel geometry and an explicit PPT-square counterexample route

    Upstream evidence: lean-present-not-comparator-audited. adapter-backed. Not local admission.

    Next boundary: admit only after canonical CP, PPT, trace-preserving, Choi and entanglement-breaking adapters are fixed

  • oai-dimension-ten-channel

    Analysis/Quantum/DimensionTen

    quantum-channel existence and geometry route

    Upstream evidence: comparator-backed. source-route. Not local admission.

    Next boundary: A local semantic adapter and independent publication review are still required.

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