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From Substance to Structure: What if Heisenberg Had Invented the "Algebra of Observables"?

Jincheng Zhang

Published Jul 25, 2026• 0 citations
Publisher

Abstract

In 1925, Werner Heisenberg formulated quantum mechanics through non-commuting arrays of numbers, which were soon systematized into matrix mechanics and eventually superseded in popularity by Schrödinger's wave-function formalism. This paper explores an alternative foundational branch in the history of physics: What if Heisenberg had bypassed concrete matrix representations and directly proposed that the physical reality of quantum mechanics lies in the algebraic relations between observables rather than their numerical values? We demonstrate that this shift from a state-first paradigm to a relation-first paradigm would have restructured the development of modern theoretical physics. Under this "Algebra of Observables" framework, concepts such as C*-algebras, the GNS construction, operator algebras, and noncommutative geometry would have emerged as the foundational language of quantum theory from its inception, rather than as later mathematical abstractions. Furthermore, this approach eliminates classical measurement paradoxes associated with wave-function collapse by treating physical states merely as positive linear functionals over the observable algebra. Finally, we analyze how a background-independent algebraic foundation naturally resolves the problem of time through modular automorphism groups, offering a direct path toward quantum gravity and emergent spacetime without relying on fixed spatial backgrounds.

DOI
10.5281/zenodo.21542784

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Revisiting the Algebraic and Analytic Descriptions of Quantum Mechanics

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Quantum mechanics was initially conceptualized within the infinite-dimensional sequence space l2 by Born, Heisenberg, and Jordan, relying on the canonical commutation relation. However, as formalized by the Wintner-Wielandt theorem, this relation cannot hold universally using bounded, everywhere-defined operators. To prevent algebraic collapse, a structural restriction becomes inevitable, revealing a profound logical dichotomy. The traditional analytical approach, formalized by von Neumann, circumvents the Wintner prohibition to secure exact invariance of the relation, but abandons the Hilbert space framework for the non-normed Schwartz space and its dual distribution space. Conversely, the algebraic approach accepts the Wintner constraint as a structural law; it preserves the strict Hilbert space structure by accepting a boundary modification of the commutation relation within a finite, yet arbitrarily large dimension C(N+1) . This autonomous path directly yields a new physical observable, defined as the action difference D . While empirical correspondence holds perfectly within the interior matrix space, only this algebraic framework unlocks manageable eigenvectors for both position and momentum. Within this formulation, we rigorously prove that all position eigenvectors possess non-negligible components extending up to the highest energy levels. Confronted with this spectrum during a position measurement, a finite observer can resolve only a bounded energy spectrum, causing the accessible information to shrink to a set of measure zero. Consequently, quantum randomness emerges as intrinsic decoherence at the interface between the finite observation window and the space. Furthermore, we can demonstrate that the algebraic representation provides the foundational, contradiction-free justification for the continuous Cauchy-Hilbert core.

arXiv:2602.14126•Feb 15, 2026•0 citations

A Review of The Algebraic Approaches to Quantum Mechanics. Appraisals on Their Theoretical Relevance

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I review the various algebraic foundations of quantum mechanics. They have been suggested since the birth of this theory till up to last year. They are the following ones: Heisenberg-Born-Jordan (1925), Weyl (1928), Dirac (1930), von Neumann (1936), Segal (1947), T.F. Jordan (1986), Morchio and Strocchi (2009) and Buchholz and Fregenhagen (2019). Three cases are stressed: 1) the misinterpretation of Dirac foundation; 2) von Neumann conversion from the analytic approach of Hilbert space to the algebraic approach of the rings of operators; 3) the recent foundation of quantum mechanics upon the algebra of perturbation Lagrangians. Moreover, historical considerations on the go-and-stop path performed by the algebraic approach in the history of QM are offered. The level of formalism has increased from the mere introduction of matrices till up to group theory and C*-algebras. But there was no progress in approaching closer the foundations of physics; therefore the problem of discovering an algebraic formulation of QM organized as a problem-based theory and making use of no more than constructive mathematics is open.

arXiv:2102.00861•Jan 29, 2021•0 citations

The Algebra of the Possible: A Narrative Review of Wavefunctions, Operators, Commutators, and the Uncertainty Principle

Zen Revista, 10 PHYSICS

Quantum mechanics' formal core is a handful of objects---the wavefunction that encodes a state, the operators that act on it, the commutators that measure their incompatibility, and the uncertainty principle that the commutators imply---and the theory's history is the story of how those objects were given. This article presents a narrative review of the primary literature that gave them, from Heisenberg's 1925 umdeutung---the reinterpretation that replaced orbits with arrays of transition amplitudes---and Schrödinger's 1926 quantization as an eigenvalue problem, which wrote the wave equation and proved the equivalence with matrix mechanics, through Born's 1926 probability interpretation of the wavefunction, Heisenberg's 1927 uncertainty paper, Robertson's 1929 general commutator inequality, Pauli's 1926 solution of the hydrogen spectrum by the new mechanics, Bohr's 1928 quantum postulate and complementarity, Weyl's 1928 group theory and quantum mechanics, Dirac's 1930 Principles, which organized the formalism's transformations, and von Neumann's 1932 mathematical foundations, which gave the theory its Hilbert space, to the Einstein-Podolsky-Rosen 1935 argument that tested what the formalism claims about reality. The synthesis is organized around three themes: the state's representations, in which matrix and wave mechanics were shown to be one theory; the uncertainty structure, in which commutators became the measure of incompatibility and the uncertainty principle its theorem; and the formalism's completion, in which Hilbert space, transformations, and the measurement problem gave the objects their rigorous home. It is concluded that the formal core's construction is physics' most consequential algebra---the theory's content located not in its pictures but in its operators' relations.

•Aug 29, 2026•0 citations

HEISENBERG AND THE PRIMITIVE ARCHITECTURE OF UNCERTAINTY

Cláudio Vicente da Silva

Description Heisenberg and the Primitive Architecture of Uncertainty: From Matrix Mechanics to Relational Transduction This work presents a philosophical-mathematical reconstruction of the Heisenberg uncertainty principle through the framework of the Primitive Architecture, with particular emphasis on relation, opposition, transformation, invariance, and transduction. The starting point is the historical transition introduced by Werner Heisenberg in 1925, when classical trajectories and numerical descriptions of physical systems were replaced by relations between observable quantities represented through matrix mechanics. The noncommutative composition of observables, AB≠BA,AB \neq BA, provides the mathematical basis for the commutator [A,B]=AB−BA.[A,B]=AB-BA. Within the proposed architectural formulation, the commutator is treated as the quantitative representation of the difference between two possible orders of relational composition. The distinction between ABAB and BABA therefore becomes the formal point at which relational opposition enters the mathematical description. The work subsequently connects this structure with the Robertson and Robertson–Schrödinger uncertainty relations. For two observables AA and BB, the standard uncertainty relation is written as ΔA ΔB≥12∣⟨[A,B]⟩∣,\Delta A\,\Delta B \geq \frac{1}{2} \left| \langle [A,B]\rangle \right|, while the Robertson–Schrödinger formulation incorporates both the commutator and the symmetric correlation term: (ΔA)2(ΔB)2≥14∣⟨[A,B]⟩∣2+14∣⟨{ΔA,ΔB}⟩∣2.(\Delta A)^2(\Delta B)^2 \geq \frac{1}{4} \left| \langle[A,B]\rangle \right|^2 + \frac{1}{4} \left| \langle\{\Delta A,\Delta B\}\rangle \right|^2. The Primitive Architecture is then used to organize these mathematical structures according to the sequence: RELATION → OPPOSITION → EQUILIBRIUM → MOVEMENT → LATENCY → TRANSDUCTION → FORM → MEMORY → RESONANCE → CYCLE → INVARIANCE → NEW RELATION. For the quantum-mechanical problem examined here, this broader architecture is reduced to the operational sequence: RELATION → OPPOSITION → UNCERTAINTY → TRANSFORMATION → INVARIANCE. A central construction of the work is the decomposition of the two composition orders into symmetric and antisymmetric components: S(A,B)=AB+BA2,S(A,B)=\frac{AB+BA}{2}, O(A,B)=AB−BA2.O(A,B)=\frac{AB-BA}{2}. Consequently, AB=S+O,AB=S+O, BA=S−O.BA=S-O. This formulation allows the relational structure to be represented as the coexistence of a symmetric component and an oppositional component, with the commutator corresponding to the latter. The article also examines unitary transformations, ∣ψ′⟩=U∣ψ⟩,U†U=I,|\psi'\rangle=U|\psi\rangle, \qquad U^\dagger U=I, and the corresponding transformation of observables, A′=UAU†,B′=UBU†.A'=UAU^\dagger, \qquad B'=UBU^\dagger. Under this transformation, [A′,B′]=U[A,B]U†,[A',B']=U[A,B]U^\dagger, and the uncertainty structure is preserved: ΔA′=ΔA,ΔB′=ΔB,\Delta A'=\Delta A, \qquad \Delta B'=\Delta B, so that ΔA′ΔB′=ΔAΔB.\Delta A'\Delta B' = \Delta A\Delta B. The work therefore identifies unitary invariance as the mathematical expression of structural preservation under transformation. The noncommutative relation itself is transformed covariantly, while its structural character is maintained. The position–momentum case is examined through the canonical relation [X,P]=iℏI,[X,P]=i\hbar I, which yields ΔX ΔP≥ℏ2.\Delta X\,\Delta P\geq\frac{\hbar}{2}. The article also considers the formal classical limit ℏ→0\hbar\rightarrow0, distinguishing the disappearance of the quantum quantitative lower bound from the broader structural concepts used in the proposed architectural formulation. A minimal matrix construction is included to make the relation between composition, opposition, variance, and uncertainty explicit. The treatment includes finite-dimensional matrices, state representations, expectation values, variances, projectors, unitary transformations, commutators, anticommutators, and higher-order nested commutators. The work further introduces a transductive interpretation of the mathematical passage (A,B)→(AB,BA)→[A,B]→ΔA ΔB,(A,B) \rightarrow (AB,BA) \rightarrow [A,B] \rightarrow \Delta A\,\Delta B, and, under transformation, (A,B)→(UAU†,UBU†),(A,B) \rightarrow (UAU^\dagger,UBU^\dagger), [A,B]→U[A,B]U†.[A,B] \rightarrow U[A,B]U^\dagger. In this formulation, transduction denotes the structural passage from one representation or relational configuration to another while preserving specified invariants. The term “latency” is used within the Primitive Architecture as an architectural concept associated with the interval between possible structural states; it is not introduced as a new standard quantum observable. The article does not propose a replacement for quantum mechanics. Its principal contribution is a philosophical-mathematical reconstruction and architectural organization of the uncertainty structure, connecting the historical matrix formulation of Heisenberg with the concepts of relation, opposition, transformation, transduction, and invariance developed within the Primitive Architecture. The work also distinguishes the author's architectural organization from established results in quantum mechanics and from contemporary developments in uncertainty relations. Historical foundations, standard mathematical inequalities, experimental results, and recent theoretical proposals cited in the bibliography are treated as external references rather than as original results of this work. Particular attention is given to contemporary developments concerning uncertainty relations, including operator-asymmetry approaches, refinements of Schrödinger-type inequalities, higher-order commutator constructions, multiparameter quantum sensing, and recent proposals connecting uncertainty relations with cosmological dynamics. These references provide the scientific context in which the present architectural reconstruction is situated. The complete formulation is summarized by the structural correspondence RELATION→OPPOSITION→QUANTIFICATION→TRANSDUCTION→INVARIANCE\boxed{ \text{RELATION} \rightarrow \text{OPPOSITION} \rightarrow \text{QUANTIFICATION} \rightarrow \text{TRANSDUCTION} \rightarrow \text{INVARIANCE} } and, at the operator level, [A,B]=AB−BA\boxed{ [A,B]=AB-BA } ΔA ΔB≥12∣⟨[A,B]⟩∣\boxed{ \Delta A\,\Delta B \geq \frac{1}{2} \left| \langle[A,B]\rangle \right| } [A′,B′]=U[A,B]U†\boxed{ [A',B'] = U[A,B]U^\dagger } ΔA′ΔB′=ΔAΔB.\boxed{ \Delta A'\Delta B' = \Delta A\Delta B. } The resulting formulation establishes a continuous conceptual and mathematical pathway from Heisenberg's matrix mechanics to a relational-transductive interpretation of quantum indeterminacy, while preserving the distinction between established quantum-mechanical mathematics and the architectural framework proposed by the author. Keywords: Heisenberg uncertainty principle; matrix mechanics; quantum mechanics; noncommutativity; commutator; anticommutator; Robertson uncertainty relation; Robertson–Schrödinger relation; variance; operator algebra; unitary transformation; invariance; relational structure; opposition; transduction; Primitive Architecture; mathematical philosophy; quantum indeterminacy.

•Sep 14, 2026•0 citations

On the Origin of Quantum Mechanics: A Representation Theory of Symmetry Groups

Ruhi Abdallah

We present a group-theoretic reconstruction of quantum mechanics in which the standard formalism emerges from the representation theory of symmetry groups rather than being introduced axiomatically. Starting from physically motivated symmetry principles, we show how the conventional postulates of quantum mechanics including the Hilbert space structure of states, observables as generators of symmetry transformations, the Born probability rule, unitary time evolution, the composition of multipartite systems, and the measurement framework can be recovered within a unified representation-theoretic framework. We then examine the measurement problem by interpreting wave-function collapse as the scattering of quantum states, thereby providing an account of the apparent loss of information. Finally, we investigate the origin of Planck's constant, proposing that it arises as the conserved charge of the Lorentz symmetry group. In this formulation, $\hbar$ is an invariant that relates Lie algebra generators to observable quantities and fixes the scale of quantum action. This framework offers a conceptually unified perspective on the foundations of quantum mechanics, connecting its postulates, measurement theory, and the emergence of the quantum of action to a common symmetry-based origin while identifying conditions under which the conventional quantum formalism is recovered.

•Aug 18, 2026•0 citations

Quantum mechanics

Carlo Rovelli C

Quantum mechanics (QM) is not just a theory of micro-objects: it is our current fundamental theory of motion. It expresses a deeper understanding of Nature than classical mechanics. Precisely as classical mechanics, the conventional formulation of QM describes evolution of states and observables in time. Precisely as classical mechanics, this is not sufficient to deal with general relativistic systems, because these systems do not describe evolution in time; they describe correlations between observables. Therefore, a formulation of QM slightly more general than the conventional one – or a quantum version of the relativistic classical mechanics discussed in the previous chapter – is needed. In this chapter I discuss the possibility of such a formulation. In the last section I discuss the general physical interpretation of QM. QM can be formulated in a number of more or less equivalent formalisms: canonical (Hilbert spaces and self-adjoint operators), covariant (Feynman's sum-over-histories), algebraic (states as linear functionals over an abstract algebra of observables) and others. Generally, but not always, we are able to translate these formalisms into one another, but often what is easy in one formulation is difficult in another. A generalrelativistic sum-over-histories formalism has been developed by Jim Hartle. Here I focus on the canonical formalism, because the canonical formalism has provided the mathematical completeness and precision needed to explicitly construct the mathematical apparatus of quantum gravity. Later I will consider alternative formalisms.

Cambridge University Press eBooks•Nov 15, 2004•0 citations
In 1925, Werner Heisenberg formulated quantum mechanics through non-commuting arrays of numbers, which were soon systematized into matrix mechanics and eventually superseded in popularity by Schrödinger's wave-function formalism. This paper explores an alternative foundational branch in the history of physics: What if Heisenberg had bypassed concrete matrix representations and directly proposed that the physical reality of quantum mechanics lies in the algebraic relations between observables rather than their numerical values? We demonstrate that this shift from a state-first paradigm to a relation-first paradigm would have restructured the development of modern theoretical physics. Under this "Algebra of Observables" framework, concepts such as C*-algebras, the GNS construction, operator algebras, and noncommutative geometry would have emerged as the foundational language of quantum theory from its inception, rather than as later mathematical abstractions. Furthermore, this approach eliminates classical measurement paradoxes associated with wave-function collapse by treating physical states merely as positive linear functionals over the observable algebra. Finally, we analyze how a background-independent algebraic foundation naturally resolves the problem of time through modular automorphism groups, offering a direct path toward quantum gravity and emergent spacetime without relying on fixed spatial backgrounds.
Quantum mechanics was initially conceptualized within the infinite-dimensional sequence space l2 by Born, Heisenberg, and Jordan, relying on the canonical commutation relation. However, as formalized by the Wintner-Wielandt theorem, this relation cannot hold universally using bounded, everywhere-defined operators. To prevent algebraic collapse, a structural restriction becomes inevitable, revealing a profound logical dichotomy. The traditional analytical approach, formalized by von Neumann, circumvents the Wintner prohibition to secure exact invariance of the relation, but abandons the Hilbert space framework for the non-normed Schwartz space and its dual distribution space. Conversely, the algebraic approach accepts the Wintner constraint as a structural law; it preserves the strict Hilbert space structure by accepting a boundary modification of the commutation relation within a finite, yet arbitrarily large dimension C(N+1) . This autonomous path directly yields a new physical observable, defined as the action difference D . While empirical correspondence holds perfectly within the interior matrix space, only this algebraic framework unlocks manageable eigenvectors for both position and momentum. Within this formulation, we rigorously prove that all position eigenvectors possess non-negligible components extending up to the highest energy levels. Confronted with this spectrum during a position measurement, a finite observer can resolve only a bounded energy spectrum, causing the accessible information to shrink to a set of measure zero. Consequently, quantum randomness emerges as intrinsic decoherence at the interface between the finite observation window and the space. Furthermore, we can demonstrate that the algebraic representation provides the foundational, contradiction-free justification for the continuous Cauchy-Hilbert core.
I review the various algebraic foundations of quantum mechanics. They have been suggested since the birth of this theory till up to last year. They are the following ones: Heisenberg-Born-Jordan (1925), Weyl (1928), Dirac (1930), von Neumann (1936), Segal (1947), T.F. Jordan (1986), Morchio and Strocchi (2009) and Buchholz and Fregenhagen (2019). Three cases are stressed: 1) the misinterpretation of Dirac foundation; 2) von Neumann conversion from the analytic approach of Hilbert space to the algebraic approach of the rings of operators; 3) the recent foundation of quantum mechanics upon the algebra of perturbation Lagrangians. Moreover, historical considerations on the go-and-stop path performed by the algebraic approach in the history of QM are offered. The level of formalism has increased from the mere introduction of matrices till up to group theory and C*-algebras. But there was no progress in approaching closer the foundations of physics; therefore the problem of discovering an algebraic formulation of QM organized as a problem-based theory and making use of no more than constructive mathematics is open.
Quantum mechanics' formal core is a handful of objects---the wavefunction that encodes a state, the operators that act on it, the commutators that measure their incompatibility, and the uncertainty principle that the commutators imply---and the theory's history is the story of how those objects were given. This article presents a narrative review of the primary literature that gave them, from Heisenberg's 1925 umdeutung---the reinterpretation that replaced orbits with arrays of transition amplitudes---and Schrödinger's 1926 quantization as an eigenvalue problem, which wrote the wave equation and proved the equivalence with matrix mechanics, through Born's 1926 probability interpretation of the wavefunction, Heisenberg's 1927 uncertainty paper, Robertson's 1929 general commutator inequality, Pauli's 1926 solution of the hydrogen spectrum by the new mechanics, Bohr's 1928 quantum postulate and complementarity, Weyl's 1928 group theory and quantum mechanics, Dirac's 1930 Principles, which organized the formalism's transformations, and von Neumann's 1932 mathematical foundations, which gave the theory its Hilbert space, to the Einstein-Podolsky-Rosen 1935 argument that tested what the formalism claims about reality. The synthesis is organized around three themes: the state's representations, in which matrix and wave mechanics were shown to be one theory; the uncertainty structure, in which commutators became the measure of incompatibility and the uncertainty principle its theorem; and the formalism's completion, in which Hilbert space, transformations, and the measurement problem gave the objects their rigorous home. It is concluded that the formal core's construction is physics' most consequential algebra---the theory's content located not in its pictures but in its operators' relations.
Description Heisenberg and the Primitive Architecture of Uncertainty: From Matrix Mechanics to Relational Transduction This work presents a philosophical-mathematical reconstruction of the Heisenberg uncertainty principle through the framework of the Primitive Architecture, with particular emphasis on relation, opposition, transformation, invariance, and transduction. The starting point is the historical transition introduced by Werner Heisenberg in 1925, when classical trajectories and numerical descriptions of physical systems were replaced by relations between observable quantities represented through matrix mechanics. The noncommutative composition of observables, AB≠BA,AB \neq BA, provides the mathematical basis for the commutator [A,B]=AB−BA.[A,B]=AB-BA. Within the proposed architectural formulation, the commutator is treated as the quantitative representation of the difference between two possible orders of relational composition. The distinction between ABAB and BABA therefore becomes the formal point at which relational opposition enters the mathematical description. The work subsequently connects this structure with the Robertson and Robertson–Schrödinger uncertainty relations. For two observables AA and BB, the standard uncertainty relation is written as ΔA ΔB≥12∣⟨[A,B]⟩∣,\Delta A\,\Delta B \geq \frac{1}{2} \left| \langle [A,B]\rangle \right|, while the Robertson–Schrödinger formulation incorporates both the commutator and the symmetric correlation term: (ΔA)2(ΔB)2≥14∣⟨[A,B]⟩∣2+14∣⟨{ΔA,ΔB}⟩∣2.(\Delta A)^2(\Delta B)^2 \geq \frac{1}{4} \left| \langle[A,B]\rangle \right|^2 + \frac{1}{4} \left| \langle\{\Delta A,\Delta B\}\rangle \right|^2. The Primitive Architecture is then used to organize these mathematical structures according to the sequence: RELATION → OPPOSITION → EQUILIBRIUM → MOVEMENT → LATENCY → TRANSDUCTION → FORM → MEMORY → RESONANCE → CYCLE → INVARIANCE → NEW RELATION. For the quantum-mechanical problem examined here, this broader architecture is reduced to the operational sequence: RELATION → OPPOSITION → UNCERTAINTY → TRANSFORMATION → INVARIANCE. A central construction of the work is the decomposition of the two composition orders into symmetric and antisymmetric components: S(A,B)=AB+BA2,S(A,B)=\frac{AB+BA}{2}, O(A,B)=AB−BA2.O(A,B)=\frac{AB-BA}{2}. Consequently, AB=S+O,AB=S+O, BA=S−O.BA=S-O. This formulation allows the relational structure to be represented as the coexistence of a symmetric component and an oppositional component, with the commutator corresponding to the latter. The article also examines unitary transformations, ∣ψ′⟩=U∣ψ⟩,U†U=I,|\psi'\rangle=U|\psi\rangle, \qquad U^\dagger U=I, and the corresponding transformation of observables, A′=UAU†,B′=UBU†.A'=UAU^\dagger, \qquad B'=UBU^\dagger. Under this transformation, [A′,B′]=U[A,B]U†,[A',B']=U[A,B]U^\dagger, and the uncertainty structure is preserved: ΔA′=ΔA,ΔB′=ΔB,\Delta A'=\Delta A, \qquad \Delta B'=\Delta B, so that ΔA′ΔB′=ΔAΔB.\Delta A'\Delta B' = \Delta A\Delta B. The work therefore identifies unitary invariance as the mathematical expression of structural preservation under transformation. The noncommutative relation itself is transformed covariantly, while its structural character is maintained. The position–momentum case is examined through the canonical relation [X,P]=iℏI,[X,P]=i\hbar I, which yields ΔX ΔP≥ℏ2.\Delta X\,\Delta P\geq\frac{\hbar}{2}. The article also considers the formal classical limit ℏ→0\hbar\rightarrow0, distinguishing the disappearance of the quantum quantitative lower bound from the broader structural concepts used in the proposed architectural formulation. A minimal matrix construction is included to make the relation between composition, opposition, variance, and uncertainty explicit. The treatment includes finite-dimensional matrices, state representations, expectation values, variances, projectors, unitary transformations, commutators, anticommutators, and higher-order nested commutators. The work further introduces a transductive interpretation of the mathematical passage (A,B)→(AB,BA)→[A,B]→ΔA ΔB,(A,B) \rightarrow (AB,BA) \rightarrow [A,B] \rightarrow \Delta A\,\Delta B, and, under transformation, (A,B)→(UAU†,UBU†),(A,B) \rightarrow (UAU^\dagger,UBU^\dagger), [A,B]→U[A,B]U†.[A,B] \rightarrow U[A,B]U^\dagger. In this formulation, transduction denotes the structural passage from one representation or relational configuration to another while preserving specified invariants. The term “latency” is used within the Primitive Architecture as an architectural concept associated with the interval between possible structural states; it is not introduced as a new standard quantum observable. The article does not propose a replacement for quantum mechanics. Its principal contribution is a philosophical-mathematical reconstruction and architectural organization of the uncertainty structure, connecting the historical matrix formulation of Heisenberg with the concepts of relation, opposition, transformation, transduction, and invariance developed within the Primitive Architecture. The work also distinguishes the author's architectural organization from established results in quantum mechanics and from contemporary developments in uncertainty relations. Historical foundations, standard mathematical inequalities, experimental results, and recent theoretical proposals cited in the bibliography are treated as external references rather than as original results of this work. Particular attention is given to contemporary developments concerning uncertainty relations, including operator-asymmetry approaches, refinements of Schrödinger-type inequalities, higher-order commutator constructions, multiparameter quantum sensing, and recent proposals connecting uncertainty relations with cosmological dynamics. These references provide the scientific context in which the present architectural reconstruction is situated. The complete formulation is summarized by the structural correspondence RELATION→OPPOSITION→QUANTIFICATION→TRANSDUCTION→INVARIANCE\boxed{ \text{RELATION} \rightarrow \text{OPPOSITION} \rightarrow \text{QUANTIFICATION} \rightarrow \text{TRANSDUCTION} \rightarrow \text{INVARIANCE} } and, at the operator level, [A,B]=AB−BA\boxed{ [A,B]=AB-BA } ΔA ΔB≥12∣⟨[A,B]⟩∣\boxed{ \Delta A\,\Delta B \geq \frac{1}{2} \left| \langle[A,B]\rangle \right| } [A′,B′]=U[A,B]U†\boxed{ [A',B'] = U[A,B]U^\dagger } ΔA′ΔB′=ΔAΔB.\boxed{ \Delta A'\Delta B' = \Delta A\Delta B. } The resulting formulation establishes a continuous conceptual and mathematical pathway from Heisenberg's matrix mechanics to a relational-transductive interpretation of quantum indeterminacy, while preserving the distinction between established quantum-mechanical mathematics and the architectural framework proposed by the author. Keywords: Heisenberg uncertainty principle; matrix mechanics; quantum mechanics; noncommutativity; commutator; anticommutator; Robertson uncertainty relation; Robertson–Schrödinger relation; variance; operator algebra; unitary transformation; invariance; relational structure; opposition; transduction; Primitive Architecture; mathematical philosophy; quantum indeterminacy.
We present a group-theoretic reconstruction of quantum mechanics in which the standard formalism emerges from the representation theory of symmetry groups rather than being introduced axiomatically. Starting from physically motivated symmetry principles, we show how the conventional postulates of quantum mechanics including the Hilbert space structure of states, observables as generators of symmetry transformations, the Born probability rule, unitary time evolution, the composition of multipartite systems, and the measurement framework can be recovered within a unified representation-theoretic framework. We then examine the measurement problem by interpreting wave-function collapse as the scattering of quantum states, thereby providing an account of the apparent loss of information. Finally, we investigate the origin of Planck's constant, proposing that it arises as the conserved charge of the Lorentz symmetry group. In this formulation, ℏ\hbarℏ is an invariant that relates Lie algebra generators to observable quantities and fixes the scale of quantum action. This framework offers a conceptually unified perspective on the foundations of quantum mechanics, connecting its postulates, measurement theory, and the emergence of the quantum of action to a common symmetry-based origin while identifying conditions under which the conventional quantum formalism is recovered.
Quantum mechanics (QM) is not just a theory of micro-objects: it is our current fundamental theory of motion. It expresses a deeper understanding of Nature than classical mechanics. Precisely as classical mechanics, the conventional formulation of QM describes evolution of states and observables in time. Precisely as classical mechanics, this is not sufficient to deal with general relativistic systems, because these systems do not describe evolution in time; they describe correlations between observables. Therefore, a formulation of QM slightly more general than the conventional one – or a quantum version of the relativistic classical mechanics discussed in the previous chapter – is needed. In this chapter I discuss the possibility of such a formulation. In the last section I discuss the general physical interpretation of QM. QM can be formulated in a number of more or less equivalent formalisms: canonical (Hilbert spaces and self-adjoint operators), covariant (Feynman's sum-over-histories), algebraic (states as linear functionals over an abstract algebra of observables) and others. Generally, but not always, we are able to translate these formalisms into one another, but often what is easy in one formulation is difficult in another. A generalrelativistic sum-over-histories formalism has been developed by Jim Hartle. Here I focus on the canonical formalism, because the canonical formalism has provided the mathematical completeness and precision needed to explicitly construct the mathematical apparatus of quantum gravity. Later I will consider alternative formalisms.