Standard physics confronts three deep fractures between macroscopic thermodynamics, microscopic quantum mechanics, and cosmology: the origin of the irreversibility of the arrow of time, causal inversion in quantum measurement, and dynamical singularities where pure-state physical systems cannot maintain self-sustaining evolution. This paper proposes “Yin-Yang Dynamics,” defining it as the underlying non-linear mechanism driving the evolution of all physical systems. Abandoning the traditional approach of treating Yin and Yang as static attributes or philosophical metaphors, the article establishes the ontological status of “Yin and Yang as the fundamental architecture of system dynamics.” On this basis, it constructs the “Yin-Yang non-commutative algebra” and the “Yin-Yang state transition matrix,” deducing the critical phase transition equations for system evolution. The study demonstrates that time is not an external container, but a lawful sequential structure generated by the mutual rooting and waxing/waning of Yin and Yang; traditional linear causality is reconstructed within the Yin-Yang topology as closed-loop “mutual-root causality.” This mechanism not only exhibits high isomorphism in microscopic quantum delayed-choice experiments and macroscopic dissipative structures, but also mathematically reconstructs the laws of causality and the arrow of time. This paper provides a rigorous and derivable non-Western ontological approach for constructing a unified dynamics beyond reductionism.
Standard physics confronts three deep fractures between macroscopic thermodynamics, microscopic quantum mechanics, and cosmology: the origin of the irreversibility of the arrow of time, causal inversion in quantum measurement, and dynamical singularities where pure-state physical systems cannot maintain self-sustaining evolution. This paper proposes “Yin-Yang Dynamics,” defining it as the underlying non-linear mechanism driving the evolution of all physical systems. Abandoning the traditional approach of treating Yin and Yang as static attributes or philosophical metaphors, the article establishes the ontological status of “Yin and Yang as the fundamental architecture of system dynamics.” On this basis, it constructs the “Yin-Yang non-commutative algebra” and the “Yin-Yang state transition matrix,” deducing the critical phase transition equations for system evolution. The study demonstrates that time is not an external container, but a lawful sequential structure generated by the mutual rooting and waxing/waning of Yin and Yang; traditional linear causality is reconstructed within the Yin-Yang topology as closed-loop “mutual-root causality.” This mechanism not only exhibits high isomorphism in microscopic quantum delayed-choice experiments and macroscopic dissipative structures, but also mathematically reconstructs the laws of causality and the arrow of time. This paper provides a rigorous and derivable non-Western ontological approach for constructing a unified dynamics beyond reductionism.
Traditional physics and classical intuition rely heavily on the concept of unilateral, linear causality, in which causes strictly precede their effects in time. However, deep conceptual challenges arising from quantum mechanics, general relativity, and modern theories of quantum gravity indicate severe limitations of this one-way temporal causal chain at the fundamental level. This paper proposes an alternative physical paradigm: causality is not a localized process evolving unidirectionally along a fixed time axis, but rather a synchronic network jointly determined by the holistic physical structure, global boundary conditions, and topological-geometric features of the system. By analyzing delayed-choice experiments, quantum entanglement, action principles in classical and quantum field theories, and closed timelike curves in general relativity, we formulate a mathematical framework for "holistic structural causality" that operates independently of a unidirectional arrow of time. This framework demonstrates that the forward flow of time is merely an emergent thermodynamic property at the macroscopic scale. At the fundamental level, global phase-space constraints dictate the co-existence and mutual relations of events. This paradigm offers new perspectives for resolving the quantum measurement problem and the time-symmetry paradox, while unlocking valuable theoretical potential for modern cosmology and quantum gravity.
This paper presents a unified formulation of the origin of the arrow of time in classical and quantum mechanics. We begin with a mechanical analysis of a one-dimensional three-particle system, which provides a concrete example in which macroscopic irreversibility emerges despite microscopically reversible dynamics. By abstracting this mechanism, we identify coarse-graining as the essential ingredient responsible for macroscopic time asymmetry. We then formulate a general structural criterion for the thermodynamic arrow of time. We show that when microscopic time evolution forms a group while the induced macroscopic evolution forms only a semigroup, macroscopic time-reversal symmetry is necessarily broken. We prove that this semigroup structure arises if and only if the coarse-graining map from microscopic to macroscopic states is non-injective. This result holds independently of whether the underlying system is classical or quantum. In the quantum case, using density matrices, antiunitary time reversal, and CPTP coarse-graining maps, we show that macroscopic irreversibility follows inevitably from information loss, without requiring any asymmetry in the microscopic laws. Our results demonstrate that the thermodynamic arrow of time has a universal structural origin: the loss of microscopic information inherent in coarse-graining.
The fundamental laws of physics (Newton, Maxwell, Schrödinger) are time-reversible, yet our macroscopic experience is governed by an irreversible arrow of time. This paradox, along with the probabilistic nature of the quantum wave function, remains a central puzzle in foundational physics. In this work, we propose a unified resolution based on Unified Field Dynamics (UFD). We postulate that the configuration space Q is not a static arena but a dynamic manifold subject to continuous stochastic agitation (Sigma dW). We derive the Second Law of Thermodynamics not as a statistical artifact, but as a geometric necessity: the dissipative drift -grad J drives the system towards states of lower potential complexity, defining a unique temporal direction. Furthermore, we demonstrate that in the regime of equilibrium between this dissipation and the vacuum noise, the dynamics of the field q are governed by a complex diffusion equation that is mathematically isomorphic to the Schrödinger Equation. We explicitly address the Wallstrom objection regarding phase quantization by invoking the topological nature of UFD solitons derived in previous work. We conclude that "Quantum Mechanics" is the hydrodynamics of the stochastic vacuum, and "Time" is the relaxation of the universe towards its geometric ground state.
Abstract The transition from microscopic reversible dynamics to macroscopic irreversible thermodynamics in statistical mechanics, the transformation from pure states to mixed states during quantum decoherence, and the transition from quantum superposition states to classical definite states in quantum measurement have long been regarded as three independent fundamental physical puzzles. This paper demonstrates that the three processes share a unified mathematical root: the filtering, truncation or projection of system degrees of freedom renders the information carried by partial degrees of freedom unreconstructable within the reduced description framework, and irreversibility spontaneously emerges in the remaining description space. Based on the rigorous derivation of Hilbert’s sixth problem proposed by Deng et al., Zurek’s environment-induced decoherence theory, and the three-stage model of temporal relativity proposed by the author, this paper extracts the mathematical structure of the three types of physical processes and constructs an axiomatic unified framework. This paper further clarifies that various filtering operations are essentially equivalent to the selection of reference frames by the observation system; any descriptive subject with finite information bandwidth must select a reference benchmark, and the arrow of time is an emergent characteristic of this selection behavior under reduced description. This paper distinguishes between global information conservation and local unreconstructable information, emphasizing that the theoretical framework does not violate unitary quantum evolution, and proposes quantitative predictions verifiable by attosecond physics and superconducting quantum experiments.
The fundamental laws of classical mechanics, quantum mechanics, and general relativity are time-symmetric, yet macroscopic experience is irreversible without exception. Standard physics bridges this gap with statistical argument: reversal is treated as merely improbable, not physically inadmissible. This paper argues that the gap is an artifact of treating space as a continuum, and that it closes once space is treated as discrete, as in Quantum-Geometry Dynamics (QGD). Two independent grounds are identified for the categorical, non-statistical irreversibility of every elementary interaction in discrete space: a local ground, the loss of individual addressability when one particle's constituent preon(+)s merge into another upon absorption; and a global ground, the irreducible universal gravitational trace left by any positional change, given that gravity in QGD is instantaneous and universal in scope. Applied across four domains, this single result dissolves the arrow-of-time problem, grounds the second law of thermodynamics in dynamics rather than probability, dissolves the apparent asymmetry between unitary evolution and measurement collapse, and shows the reversible/irreversible distinction in quantum gate theory to be a feature of the abstract computational model rather than of physical mechanism. The result is shown to be compatible with, and silent on, whether a finite deterministic system's forward dynamics eventually revisit an earlier configuration by a non-retracing causal path. No new axiom or free parameter is introduced: the result follows from elements of QGD already established for independent reasons.
This volume transitions the quantum thermodynamics discourse from merely observing macroscopic irreversibility to its active creation, manipulation, and structural engineering at the microscopic scale. The theoretical foundation is established by anchoring the universal arrow in the Entanglement Past Hypothesis (EPH), which posits a pure, unentangled initial state for the universe, and the "tooth of time" mechanism, which links irreversibility to state-space non-degeneracy. The paper demonstrates that the thermodynamic arrow is a highly local and malleable resource, governed not by a monolithic global time parameter, but by the geometric flow of Quantum Causal Influence (QCI) and local Rényi entropy gradients. This is evidenced by spontaneous temporal oscillations observed in constrained non-ergodic systems like quantum many-body scars. Operationally, the arrow can be inverted locally by using continuous measurement back-action and targeted feedback Hamiltonians, enabling quantum engines to extract coherent work and drive processes like spontaneous cold-to-hot heat flow by leveraging initial quantum correlations. Furthermore, the Intrinsic Hamiltonian of Mean Force (I-HMF) is introduced to rigorously secure the equivalence between information loss and physical irreversibility even in the extreme strong-coupling regime. Also available on Academia.edu: https://www.academia.edu/attachments/132724386/download_file?s=portfolio