Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

KSCCN VOLUME III · 31 AUGUST 2026 Observable Shapes of a Persian-Rug Substrate What multi-sector quantum geometry looks like from inside the apparatus

Syed Muntasir Mamun

Published Aug 31, 2026• 0 citations
Publisher

Abstract

Volumes I and II defined a rug substrate and computed a holonomy residual on a six-site chain (Mamun, 2026a; 2026b). The present volume asks a different question: if that space is real, what shapes can an observer record? Shape is not a picture of a manifold. It is the image of a finite list of maps from laboratory paths into numbers, curves and flags. Five observable shapes are classified. (S1) The occupancy constellation: the image of Λ in a four-dimensional ledger. (S2) The wall complex: the arrangement of regime crossings in control space. (S3) The holonomy curve: ΔF as a function of knot angle and winding. (S4) The theme flag: an invariant that stays put under legal walls and drops under detectors. (S5) The measure and echo shapes: correlator profiles, revival envelopes, and a finite-N singularity spectrum. On the Volume II toy these shapes are already distinct. The constellation separates in the (gap, lT) plane and crowds in the (IPR, d2) plane. The holonomy curve is monotone in ε, with an identity-wall intercept of 0.020. The theme flag is binary at legal knots and leaks to we = 0.882 at a detector. Echo envelopes and connected ZZ profiles are sector-specific; d2 is not. The laboratory translation is a short menu: report the shape, not only the fidelity to a target computational state. A single exponential T2, a single Berry phase on one Bloch sphere, and a single Lindblad rate are the shapes this ontology predicts one will not see once walls are present. C S Also available on Academia.edu: https://www.academia.edu/attachments/134081814/download_file?s=portfolio

DOI
10.5281/zenodo.22990198

Related papers

Persian-Rug Substrates and Multi-Sector Curvature: An Anatomical Review of the Coming Substrate Crisis in Quantum Computing

Syed Muntasir Mamun

J. Harlow's essay The Coming Substrate Crisis in Quantum Computing (29 August 2026) argues that every major hardware family — superconducting circuits, trapped ions, neutral atoms, and photonics — is being scaled on a false geometric premise: a single-sector continuum manifold with one curvature, one connection, and one holonomy group. The present KSCCN note accepts that diagnosis as a research programme, not as a completed theorem. It performs an anatomical review of the claim, contrasts it with the leading substrate theories of contemporary quantum geometry (loop quantum gravity and spin networks; causal sets; noncommutative geometry; algebraic quantum field theory and Type III factors; information geometry; AdS/CFT and holographic codes; scale-relativity and fractal spacetime; and post-quantum cryptography's discrete algebraic substrates), and records both strengths and liabilities. The constructive contribution is a Persian-rug ontology of substrates. Quantum substrates are not a single rolled continuum, nor a discrete lattice of identical cells. They are unfurled, like a hand-knotted rug, as a family of sectors and themes, each occupying a characteristic length and breadth in space and in time, each carrying its own Hausdorff–Besicovitch spectrum, and none identically repeating another. The relevant geometry is therefore neither Abelian nor Euclidean in the first instance. It is a stratified, multifractal, sector-indexed holonomy with theme-dependent dimension. Also available on Academia.edu: https://www.academia.edu/attachments/134053150/download_file?s=portfolio

•Aug 29, 2026•0 citations

A Toy Rug: Three Sectors, Two Themes, and a Multifractal Error Measure on a Spin Chain Computing rug holonomy against a single interpolated chart and an averaged Lindblad baseline

Syed Muntasir Mamun

Volume I of this pair introduced a Persian-rug ontology of quantum substrates: a sheaf of themed sectors with occupancy ledger Λ(α, θ) = (lX, lT, dH, dS) and a rug holonomy interrupted by wall operators Wi (Mamun, 2026a). The present volume constructs the minimal object that can put those definitions to a number. A six-site XXZ chain with a next-nearest perturbation is assigned three Hamiltonian sectors and two themes (even parity as a code theme; full-space dynamics as a charge theme). An even-parity initial state is transported around a triangular control loop that visits the three sectors. Three evolutions are compared: a piecewise sector path with optional knots; a smoothly interpolated single-chart Hamiltonian on the same triangle; and an averaged generator with local amplitude damping and dephasing. At vanishing knot strength the piecewise path already parts from the interpolated chart by a fidelity residual ΔF = 1 − F = 0.020. The residual rises monotonically with knot angle ε, reaching 0.080, 0.249 and 0.706 at ε = 0.10, 0.20 and 0.40. A detector-like wall that fails the theme grammar leaks even-parity weight from 1.000 to 0.882 and opens a further residual. An averaged Lindblad generator on the barycentric Hamiltonian does not track either unitary path (purity 0.450). Finite-N dimension estimators only weakly separate the three sectors; gap, echo envelope and correlator profile separate them cleanly. Also available on Academia.edu: https://www.academia.edu/attachments/134080798/download_file?s=portfolio

•Aug 31, 2026•0 citations

Annex to KSCCN Volume II: Simulation Figures -Quantum Information Geometric Symmetries

Syed Muntasir Mamun

of the Annex The three figures presented above constitute direct visual and numerical evidence that the group-invariance and maximal-invariant reduction framework developed for classical statistical models in Nielsen & Okamura (2026) and reviewed in KSCCN Volume I lifts without essential change to the quantum setting. The Bloch-sphere geometry makes the invariants geometrically obvious; the error histogram confirms invariance to machine precision; and the collapse plots demonstrate that the quantum relative entropy is completely determined by the three scalar invariants — the quantum analogue of the classical SVD + block-norm coordinates. Together they provide both theoretical confirmation and a practical computational tool for any problem in quantum information geometry that respects unitary (or local-unitary) symmetry. C SC S KK Dr. Syed Muntasir Mamun, PhD, PGD (Oxon) | ORCID: 0000-0001-6845-2853 KSCCN Page 3 Also available on Academia.edu: https://www.academia.edu/attachments/133246861/download_file?s=portfolio

•Jan 1, 2026•0 citations

Anatomical Review of "Heading towards an Algebraic Heisenberg Cut" – Volume III: Experimental Interfaces, Signatures of Sectorisation versus Conventional Decoherence

Syed Muntasir Mamun

This volume turns from the mathematical foundations established in Volumes I and II to the concrete question of experimental testability. We ask how the distinctive mechanism of von Neumann sectorisation—self-decoherence arising solely from the exponential growth of the Hilbert-space dimension in an infinite tensor product—can be isolated from conventional environment-induced decoherence in laboratory settings. Two classes of platforms are examined in detail: (i) carefully engineered mesoscopic detectors in which the number of participating microscopic degrees of freedom can be tuned while external baths are minimised, and (ii) quantum-non-demolition (QND) measurement schemes, both optical and circuitQED based, in which the system under test remains unperturbed. Quantitative signatures are derived: the double-exponential decay of inter-sector overlap as a function of avalanche generation number, the absence of dissipation or heating correlated with coherence loss, and the preservation of system coherence in QND realisations. Feasibility with current technology (superconducting circuits, quantum dots, trapped ions, and Rydberg-atom ensembles) is assessed, together with proposed control experiments that would falsify or confirm the sectorisation picture. The analysis remains anchored in the avalanche-photodiode model of Van Den Bossche and Grangier (2025) while indicating clear pathways toward its generalisation. K 1 S C Also available on Academia.edu: https://www.academia.edu/attachments/133072773/download_file?s=portfolio

•Jun 11, 2026•0 citations

KSCCN Series on Critical AI, Complexity & Digital Sovereignty Studies Teaching Note, Volume II: Hilbert Space in Quantum Computing Theory, Epistemology, and a Comparison of Leading Formalisms — A Companion to Harikaran M.'s Pedagogical Sketch

Syed Muntasir Mamun

Paper by Dr. Syed Muntasir Mamun (KSCCN). Also available on Academia.edu: https://www.academia.edu/attachments/134371119/download_file?s=portfolio

•Sep 19, 2026•0 citations

From Feynman Paths to Constitutional Holonomy: An Anatomical Review of Harlow's Geometric Programme for Room-Temperature Quantum Computation

Syed Muntasir Mamun

This paper offers an anatomical review of J. Harlow's LinkedIn essay Feynman's Equal-Magnitude Amplitudes as Holonomy Classes in Room Temperature Quantum Computation (2 September 2026). The source text proposes a structural identification between Feynman's equal-magnitude rule in the path integral and invariant-preserving holonomy classes on a 'constitutional manifold' equipped with SU(7) (and, in authorial commentary, SU(0)) admissibility. It introduces two coined primitives — Harlow Seeds as curvature generators and Harlow Conduits as coherence-preserving transport structures — and asserts that the resulting geometry yields room-temperature quantum coherence extended by three to four orders of magnitude, photon–neutrino paraparticle transport, and computation without matrices or thermodynamic cost. The review reconstructs the argument layer by layer; inventories internal strengths and structural defects; situates the programme against fifteen neighbouring models in geometric quantum computation, gauge theory, quantum gravity, ambient-temperature architectures, and interpretational quantum theory; and develops the ontological and epistemological verticals that the essay tacitly occupies. Also available on Academia.edu: https://www.academia.edu/attachments/134115710/download_file?s=portfolio

•Sep 2, 2026•0 citations
Volumes I and II defined a rug substrate and computed a holonomy residual on a six-site chain (Mamun, 2026a; 2026b). The present volume asks a different question: if that space is real, what shapes can an observer record? Shape is not a picture of a manifold. It is the image of a finite list of maps from laboratory paths into numbers, curves and flags. Five observable shapes are classified. (S1) The occupancy constellation: the image of Λ in a four-dimensional ledger. (S2) The wall complex: the arrangement of regime crossings in control space. (S3) The holonomy curve: ΔF as a function of knot angle and winding. (S4) The theme flag: an invariant that stays put under legal walls and drops under detectors. (S5) The measure and echo shapes: correlator profiles, revival envelopes, and a finite-N singularity spectrum. On the Volume II toy these shapes are already distinct. The constellation separates in the (gap, lT) plane and crowds in the (IPR, d2) plane. The holonomy curve is monotone in ε, with an identity-wall intercept of 0.020. The theme flag is binary at legal knots and leaks to we = 0.882 at a detector. Echo envelopes and connected ZZ profiles are sector-specific; d2 is not. The laboratory translation is a short menu: report the shape, not only the fidelity to a target computational state. A single exponential T2, a single Berry phase on one Bloch sphere, and a single Lindblad rate are the shapes this ontology predicts one will not see once walls are present. C S Also available on Academia.edu: https://www.academia.edu/attachments/134081814/download_file?s=portfolio
J. Harlow's essay The Coming Substrate Crisis in Quantum Computing (29 August 2026) argues that every major hardware family — superconducting circuits, trapped ions, neutral atoms, and photonics — is being scaled on a false geometric premise: a single-sector continuum manifold with one curvature, one connection, and one holonomy group. The present KSCCN note accepts that diagnosis as a research programme, not as a completed theorem. It performs an anatomical review of the claim, contrasts it with the leading substrate theories of contemporary quantum geometry (loop quantum gravity and spin networks; causal sets; noncommutative geometry; algebraic quantum field theory and Type III factors; information geometry; AdS/CFT and holographic codes; scale-relativity and fractal spacetime; and post-quantum cryptography's discrete algebraic substrates), and records both strengths and liabilities. The constructive contribution is a Persian-rug ontology of substrates. Quantum substrates are not a single rolled continuum, nor a discrete lattice of identical cells. They are unfurled, like a hand-knotted rug, as a family of sectors and themes, each occupying a characteristic length and breadth in space and in time, each carrying its own Hausdorff–Besicovitch spectrum, and none identically repeating another. The relevant geometry is therefore neither Abelian nor Euclidean in the first instance. It is a stratified, multifractal, sector-indexed holonomy with theme-dependent dimension. Also available on Academia.edu: https://www.academia.edu/attachments/134053150/download_file?s=portfolio
Volume I of this pair introduced a Persian-rug ontology of quantum substrates: a sheaf of themed sectors with occupancy ledger Λ(α, θ) = (lX, lT, dH, dS) and a rug holonomy interrupted by wall operators Wi (Mamun, 2026a). The present volume constructs the minimal object that can put those definitions to a number. A six-site XXZ chain with a next-nearest perturbation is assigned three Hamiltonian sectors and two themes (even parity as a code theme; full-space dynamics as a charge theme). An even-parity initial state is transported around a triangular control loop that visits the three sectors. Three evolutions are compared: a piecewise sector path with optional knots; a smoothly interpolated single-chart Hamiltonian on the same triangle; and an averaged generator with local amplitude damping and dephasing. At vanishing knot strength the piecewise path already parts from the interpolated chart by a fidelity residual ΔF = 1 − F = 0.020. The residual rises monotonically with knot angle ε, reaching 0.080, 0.249 and 0.706 at ε = 0.10, 0.20 and 0.40. A detector-like wall that fails the theme grammar leaks even-parity weight from 1.000 to 0.882 and opens a further residual. An averaged Lindblad generator on the barycentric Hamiltonian does not track either unitary path (purity 0.450). Finite-N dimension estimators only weakly separate the three sectors; gap, echo envelope and correlator profile separate them cleanly. Also available on Academia.edu: https://www.academia.edu/attachments/134080798/download_file?s=portfolio
of the Annex The three figures presented above constitute direct visual and numerical evidence that the group-invariance and maximal-invariant reduction framework developed for classical statistical models in Nielsen & Okamura (2026) and reviewed in KSCCN Volume I lifts without essential change to the quantum setting. The Bloch-sphere geometry makes the invariants geometrically obvious; the error histogram confirms invariance to machine precision; and the collapse plots demonstrate that the quantum relative entropy is completely determined by the three scalar invariants — the quantum analogue of the classical SVD + block-norm coordinates. Together they provide both theoretical confirmation and a practical computational tool for any problem in quantum information geometry that respects unitary (or local-unitary) symmetry. C SC S KK Dr. Syed Muntasir Mamun, PhD, PGD (Oxon) | ORCID: 0000-0001-6845-2853 KSCCN Page 3 Also available on Academia.edu: https://www.academia.edu/attachments/133246861/download_file?s=portfolio
This volume turns from the mathematical foundations established in Volumes I and II to the concrete question of experimental testability. We ask how the distinctive mechanism of von Neumann sectorisation—self-decoherence arising solely from the exponential growth of the Hilbert-space dimension in an infinite tensor product—can be isolated from conventional environment-induced decoherence in laboratory settings. Two classes of platforms are examined in detail: (i) carefully engineered mesoscopic detectors in which the number of participating microscopic degrees of freedom can be tuned while external baths are minimised, and (ii) quantum-non-demolition (QND) measurement schemes, both optical and circuitQED based, in which the system under test remains unperturbed. Quantitative signatures are derived: the double-exponential decay of inter-sector overlap as a function of avalanche generation number, the absence of dissipation or heating correlated with coherence loss, and the preservation of system coherence in QND realisations. Feasibility with current technology (superconducting circuits, quantum dots, trapped ions, and Rydberg-atom ensembles) is assessed, together with proposed control experiments that would falsify or confirm the sectorisation picture. The analysis remains anchored in the avalanche-photodiode model of Van Den Bossche and Grangier (2025) while indicating clear pathways toward its generalisation. K 1 S C Also available on Academia.edu: https://www.academia.edu/attachments/133072773/download_file?s=portfolio
This paper offers an anatomical review of J. Harlow's LinkedIn essay Feynman's Equal-Magnitude Amplitudes as Holonomy Classes in Room Temperature Quantum Computation (2 September 2026). The source text proposes a structural identification between Feynman's equal-magnitude rule in the path integral and invariant-preserving holonomy classes on a 'constitutional manifold' equipped with SU(7) (and, in authorial commentary, SU(0)) admissibility. It introduces two coined primitives — Harlow Seeds as curvature generators and Harlow Conduits as coherence-preserving transport structures — and asserts that the resulting geometry yields room-temperature quantum coherence extended by three to four orders of magnitude, photon–neutrino paraparticle transport, and computation without matrices or thermodynamic cost. The review reconstructs the argument layer by layer; inventories internal strengths and structural defects; situates the programme against fifteen neighbouring models in geometric quantum computation, gauge theory, quantum gravity, ambient-temperature architectures, and interpretational quantum theory; and develops the ontological and epistemological verticals that the essay tacitly occupies. Also available on Academia.edu: https://www.academia.edu/attachments/134115710/download_file?s=portfolio