The quantum measurement problem, after nearly a century of exploration, centers on how a macroscopic superposition transitions to a definite classical outcome.Based on two minimal axioms—information conservation and computability—thispaper introduces the information potential difference ∆µ as the unique order parameter for the quantum-classical transition. It is theoretically proven that ∆µhas a minimum quantum of ln2, and completing a ln2 transition corresponds toa ”self-referential closure”, at which point the density matrix diagonalizes and asingle world emerges. When ∆µ is experimentally suppressed below ln2, the system remains in a critical layer, producing observable ”fragmented many-worlds”signals, including a mutual information drop of 0.43–0.46, an entropy production pulse on the order of 10−23J/K, and a chiral current of 17–19 nA without an external field. We design three mesoscopic experiments—superconductingquantum-mechanical oscillator, diamond torsion pendulum-NV center, and topological insulator-Josephson junction—to be implemented in 2025–2028, providing a5σ confidence criterion. This framework transforms the ”Schrödinger’s cat” paradox into an adjustable and readable information potential difference scale in thelaboratory, making the single-world vs. many-worlds debate a testable quantitative problem for the first time, and opening experimental avenues for subsequentexploration of closure time scaling laws, fragmented world manipulation, and themicroscopic origin of information potential difference.
The quantum measurement problem, after nearly a century of exploration, centers on how a macroscopic superposition transitions to a definite classical outcome.Based on two minimal axioms—information conservation and computability—thispaper introduces the information potential difference ∆µ as the unique order parameter for the quantum-classical transition. It is theoretically proven that ∆µhas a minimum quantum of ln2, and completing a ln2 transition corresponds toa ”self-referential closure”, at which point the density matrix diagonalizes and asingle world emerges. When ∆µ is experimentally suppressed below ln2, the system remains in a critical layer, producing observable ”fragmented many-worlds”signals, including a mutual information drop of 0.43–0.46, an entropy production pulse on the order of 10−23J/K, and a chiral current of 17–19 nA without an external field. We design three mesoscopic experiments—superconductingquantum-mechanical oscillator, diamond torsion pendulum-NV center, and topological insulator-Josephson junction—to be implemented in 2025–2028, providing a5σ confidence criterion. This framework transforms the ”Schrödinger’s cat” paradox into an adjustable and readable information potential difference scale in thelaboratory, making the single-world vs. many-worlds debate a testable quantitative problem for the first time, and opening experimental avenues for subsequentexploration of closure time scaling laws, fragmented world manipulation, and themicroscopic origin of information potential difference.
This paper proposes a quantum measurement framework based on structuralstability theory, aiming to resolve the logical dilemma of the quantum–classicaltransition in Schrödinger’s cat paradox. Traditional quantum mechanics relies onexternal mechanisms such as “observer introduction” or “decoherence” to explainmacroscopic reality, leading to vague ontological commitments. We argue that thefundamental reason macroscopic quantum states cannot maintain coherent superpositions lies in the self-organizing critical behavior constrained by the system’sinternal structural stability. The core mechanism is: when a quantum system couples with a classical measuring device, its Hilbert space representation is forced toproject from a high-dimensional unitary representation onto a low-dimensional classical representation, a process driven by the extremization of a structural stabilityfunctional, not by external observation. We rigorously prove that when the system’sstructural information density exceeds a critical threshold, the quantum superposition state cannot satisfy self-consistency constraints mathematically; the systemmust select a classical eigenstate through an “algebraic filtration” mechanism. Thetheory yields three testable predictions: (1) a microscopic entropy production pulseat the moment of coupling between the measuring device and the quantum system,of order 10−21 J/K; (2) a deviation of the quantum Zeno suppression factor fromstandard quantum mechanical predictions on microsecond scales; (3) a scaling-lawdivergence of the decoherence time of macroscopic superpositions at critical parameters. These effects can be tested in coupled superconductor qubit–mechanicalresonator systems. The framework does not modify unitary evolution, does not relyon many-worlds assumptions, and does not introduce collapse postulates; instead,it transforms the measurement problem into a question of compatibility betweenquantum information structure and geometric–topological constraints.
This paper proposes a novel structural solution to the quantum measurementproblem based on the Bispectral-Covariant Constraint Quantum Decision (BCTCQD) framework. By systematically analyzing the reconstruction mechanism ofthe Schrödinger’s cat paradox within the many-worlds interpretation, we establish a complete theoretical system incorporating bispectral invariants, constraintphase transitions, and the three-boundary inequality. The research proves that thequantum-classical transition is essentially a self-organizing process driven by constraints inherent in the system’s internal mathematical structure, rather than anexternal observational act. The framework successfully unifies six mathematicalphysical methods: Dynamic Time Algebra, Post-Markovian Paradigm, TemporalLayer Causal Evolution, Chronogroup Framework, Chronological Fiber CategoryTheory, and Origin of Order Theory. It derives several testable experimental predictions, including an entropy production pulse (on the order of 10−21 J/K), a topological chiral current (19nA), and the logarithmic scaling of CMB non-Gaussianity(fNL(ℓ) ∝ 1/logℓ). The discrete numerical model in the appendix further verifiesthe computability of self-referential closed loops and constraint saturation, layingthe foundation for experimental tests of the theory.
Projection dynamics reconstructs the quantum measurement process as an informationdriven continuous evolution, providing a new theoretical perspective for understanding the measurement problem. The core predictions of this framework includethree testable effects: the complex-structure phase transition, the latent-world entanglement fingerprint, and the squared-amplitude projection deviation. This paper systematically designs quantitative verification schemes for these three predictions on three major physical platforms: superconducting qubit arrays, diamondNV center-mechanical resonator coupled systems, and superconducting transmonqubit-mechanical resonator systems. The complex-structure phase transition measurement scheme based on superconducting qubit arrays scans the critical pointthrough tunable coupling strength, with the expectation of observing the powerlaw decay of the latent-world correlation function and a critical exponent α ≈ 0.5;the latent-world entanglement fingerprint detection scheme based on diamond NVcenter-mechanical resonator coupled systems detects the information potential difference threshold ∆µ = ln2 through mutual information drop and entropy production pulse, with the expectation that a chiral current of order I ∼ nA can serve as amacroscopic probe; the precise measurement scheme for the squared-amplitude projection deviation based on superconducting transmon qubit-mechanical resonatorsystems expects a deviation magnitude ε ∼ 10−3, which can be statistically verified through repeated measurements. This paper further proposes a multi-platformcross-validation strategy involving cold atom systems, photonic quantum walks, andtopological quantum computing platforms, providing a systematic experimental testpath for the core predictions of projection dynamics, transforming the quantummeasurement problem from a debate over interpretations into an experimentallytestable study of critical phenomena.
Schrödinger’s cat thought experiment profoundly reveals the fundamental tension between the principle of quantum superposition and macroscopic classicalreality. This paper systematically elaborates six emerging mathematical-physicalframeworks aimed at reconstructing this paradox: Dynamic Time Algebra, PostMarkovian Paradigm, Temporal Layer Causal Evolution Theory, Chronogroup Framework, Chronological Fiber Category Theory, and Origin of Order Theory. Thesetheories respectively start from algebraic, logical, homological, group-theoretic, categorical, and thermodynamic structures, demonstrating the essential reasons whymacroscopic systems cannot maintain quantum superpositions. They collectivelypoint to a core viewpoint: the classical state of the cat is not determined by theexternal observer’s ”looking”, but is spontaneously completed by an internal ”selfstabilization mechanism” initiated by the system itself before the observer’s intervention, in order to repair the ”structural fracture” at the micro-macro interface.The core contribution of this paper is to reveal that these six theories are not isolated but are manifestations of the same underlying physical process under differentmathematical projections. By analyzing their unification theorems, core mechanisms, and experimentally testable predictions (such as entropy production pulses,logical afterimages, critical slowing down, etc.), this paper provides a self-consistentstructural answer to the quantum measurement problem without introducing thecollapse postulate or many-world branches.
This paper proposes a theoretical framework for quantum measurement basedon four-dimensional Chern-Simons topological field theory. The framework reconstructs the coupling between the measured system and the measuring apparatus asa unified gauge system, whose dynamics is governed by a topological action withboundary terms: S[A] = k 4π ∫M Tr(F ∧F)+ k 4π ∫ ∂M CS(A). We prove that the topological phase of the system is rigidly labeled by the integer topological invariant—the second Chern number Ch2(P): when Ch2(P) = 0, the system admits a globallyunique classical narrative (single-world description); when Ch2(P)= 0, the bulktopological nontriviality inevitably induces topologically protected chiral modes onthe boundary, rendering any single classical description incapable of accommodating all physical information, making the many-worlds description a mathematicalnecessity. Furthermore, we reconstruct the measurement process itself as the dynamics of a topological phase transition driven by coupling strength: the boundaryconditions of the measuring apparatus force the system to be defined on a manifold with boundary; adiabatic variation of the coupling parameter drives the systemacross a critical point, where the second Chern number jumps from zero to nonzero,and the branch of the transition is locked to the different eigenstates of the detector,thereby generating a chiral current on the boundary whose direction is locked bysgn(Ch2(P)) without external fields. Based on the Josephson junction array model,the typical magnitude of the chiral current is estimated to be ∼ 10nA, which lieswithin the detection range of existing nano-SQUID devices. Renormalization groupanalysis shows that Ch2 = 0 is an infrared stable fixed point, and the classicality ofmacroscopic apparatus originates from this dynamical hardening mechanism. Thistheory transforms the quantum measurement problem from philosophical speculation into a computable and experimentally testable physical proposition.
The many-worlds interpretation holds an important position in foundationalstudies of quantum mechanics due to its ontological parsimony—adhering to theuniversality of the wave function and unitary evolution. However, this interpretation has long faced core challenges such as the fuzzy mathematical definition of”world branches” and the origin of probability. Within the framework of a ”faileduniverse,” this paper re-examines the generation conditions and existence formsof many-worlds structure. By introducing topological constraint phase transitionsand self-referential reconstruction dynamics, we prove that when the universe is in a”failed phase” caused by insufficient logical depth, the global many-worlds description collapses, but its topological order parameter—the second Chern number—localizes in a modularized discrete form within causal fragments. The many-worldsdo not disappear but exist in a fragmented, modalized manner; the quantum measurement process is reconstructed in this picture as a topological transition of theobserver on the boundaries of causal fragments, rather than instantaneous wavefunction collapse or global world splitting. This framework unifies quantum measurement, spacetime emergence, and cosmological observations into a self-consistenttheoretical system, and derives three experimentally distinguishable predictions:non-Gaussianity of the cosmic microwave background radiation, the logical noisespectrum of primordial gravitational waves, and a detectable discrete chiral currentin mesoscopic circuits.