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The Ladder of Emergence N: Quantum Error Correction, Holographic Duality, and Information Recovery — A Cost Landscape Perspective on Quantum Information Dynamics

changzheng zhou, ZIQING zhou

Published May 7, 2026• 0 citations
Publisher

Abstract

Central phenomena in quantum information processing– from the coding gainof quantum error-correcting codes, to the information mapping between boundaryand bulk in the AdS/CFT holographic duality, to the Page curve of informationrecovery during black hole evaporation– can be unified under the concept of “information compression cost”. This paper proposes that any quantum informationoperation must pay an irreversible entropy production jointly determined by Landauer’s principle and the Bekenstein bound, and that systems under these costconstraints seek to minimize a cost functional representing the difference betweendescription complexity and predictive (or protective) capability. The encodingprocess of stabilizer codes is modeled as the information compression required toprotect logical qubits against noise. The Ryu-Takayanagi formula in holographicduality indicates that the boundary theory must pay an information maintenancecost proportional to the area of the extremal surface in order to maintain its effective description of the bulk geometry. The Page curve of the black hole informationparadox is interpreted as a first-order kinetic phase transition on the cost landscapebetween two minima– one corresponding to an information-lost state and the otherto an information-recovered state. This framework integrates quantum error correction, the holographic principle, and the black hole information problem into aunified picture of information economics, and presents quantitative relations thatare amenable to further testing.

DOI
10.5281/zenodo.20063742

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We establish a quantitative equivalence between the holographic duality of theAdS/CFT correspondence and the theory of quantum error-correcting codes (QECC).By identifying the code subspace with the low-energy bulk effective field theoryand the physical Hilbert space with the boundary CFT, we show that the RyuTakayanagi formula for entanglement entropy directly determines the code distanced —the minimal weight of an undetectable error. We prove a holographic Hammingbound: d ≤ Area(γmin)/(4Gℏln2), with equality for perfect tensor networks. Thegravitational constant G thus quantifies the error-correcting capacity of spacetime.A testable prediction is derived: the code distance for a black hole horizon saturates the bound, explaining the unitarity of Hawking evaporation as a property of amaximum-distance separable code. We further show that the entanglement wedgereconstruction theorem is equivalent to the Knill–Laflamme conditions for QECC
Abstract This article reviews the progress in our understanding of the reconstruction of the bulk spacetime in the holographic correspondence from the dual field theory including an account of how these developments have led to the reproduction of the Page curve of the Hawking radiation from black holes. We review quantum error correction and relevant recovery maps with toy examples based on tensor networks, and discuss how it provides the desired framework for bulk reconstruction in which apparent inconsistencies with properties of the operator algebra in the dual field theory are naturally resolved. The importance of understanding the modular flow in the dual field theory has been emphasized. We discuss how the state-dependence of reconstruction of black hole microstates can be formulated in the framework of quantum error correction with inputs from extremal surfaces along with a quantification of the complexity of encoding of bulk operators. Finally, we motivate and discuss a class of tractable microstate models of black holes which can illuminate how the black hole complementarity principle can emerge operationally without encountering information paradoxes, and provide new insights into generation of desirable features of encoding into the Hawking radiation.
Tensor networks implementing quantum error correcting codes have recently been used to construct toy models of holographic duality explicitly realizing some of the more puzzling features of the AdS/CFT correspondence. These models reproduce the Ryu-Takayanagi entropy formula for boundary intervals, and allow bulk operators to be mapped to the boundary in a redundant fashion. These exactly solvable, explicit models have provided valuable insight but nonetheless suffer from many deficiencies, some of which we attempt to address in this article. We propose a new class of tensor network models that subsume the earlier advances and, in addition, incorporate additional features of holographic duality, including: (1) a holographic interpretation of all boundary states, not just those in a “code” subspace, (2) a set of bulk states playing the role of “classical geometries” which reproduce the Ryu-Takayanagi formula for boundary intervals, (3) a bulk gauge symmetry analogous to diffeomorphism invariance in gravitational theories, (4) emergent bulk locality for sufficiently sparse excitations, and (5) the ability to describe geometry at sub-AdS resolutions or even flat space.
This paper unifies holographic quantum error-correcting codes, the internaldynamics of black holes, and the Einstein–Rosen bridge within a mathematicalframework centered on the category of constraint networks and spectral flow. Byencoding tensor networks as weighted hypergraphs and introducing a faithful functor, a strict duality between bulk spacetime geometry and boundary quantuminformation is established. In this framework, the code distance is determined bythe Cheeger isoperimetric lower bound and is shown to be equivalent to the invariant features of the Laplacian spectral flow under coarse-graining; black holeevaporation is described as a percolation phase transition caused by the failure ofinternal entanglement structures, where the failure of the condensation operatorautomatically triggers the splitting operator, leading to branching of quantum extremal surfaces and quantitative constraints on information release governed by theinformation conservation axiom; the formation of the ER bridge corresponds to atopological mutation induced by the rewiring functor, whose throat area is rigidlydetermined by the information-potential difference across the boundary and thenetwork compression ratio. The two axioms of information conservation and computability run throughout the entire treatment, reducing all geometric connectivitydecision problems to polynomial-time solvable graph algorithms. We further givespecific numerical predictions for the code-distance enhancement of non-Abeliansymmetric tensor networks, the acceleration of wormhole connectivity computability, and the critical behavior of the condensation–splitting phase transition, anddesign a simulation verification scheme independent of external datasets.
Holographic quantum error-correcting codes have been proposed as toy models that describe key aspects of the anti-de Sitter/conformal field theory (AdS/CFT) correspondence. In this work, we introduce a versatile framework of Majorana dimers capturing the intersection of stabilizer and Gaussian Majorana states. This picture allows for an efficient contraction with a simple diagrammatic interpretation and is amenable to analytical study of holographic quantum error-correcting codes. Equipped with this framework, we revisit the recently proposed hyperbolic pentagon code (HyPeC). Relating its logical code basis to Majorana dimers, we efficiently compute boundary-state properties even for the non-Gaussian case of generic logical input. The dimers characterizing these boundary states coincide with discrete bulk geodesics, leading to a geometric picture from which properties of entanglement, quantum error correction, and bulk/boundary operator mapping immediately follow. We also elaborate upon the emergence of the Ryu-Takayanagi formula from our model, which realizes many of the properties of the recent bit thread proposal. Our work thus elucidates the connection among bulk geometry, entanglement, and quantum error correction in AdS/CFT and lays the foundation for new models of holography.