By positing energy as intrinsic and independent—with momentum, time, and spatial properties emerging as functions of boost energy (either directly or indirectly)—E-Theory achieves a fully covariant, background-independent formulation for quantum mechanics. This paper demonstrates that by anchoring special relativity in the invariant energy–momentum relationship and reinterpreting energy as an independent variable rather than a dependent property, we transform the traditional four-vector—typically expressed via complex differential relationships—into three simple algebraic functions for momentum, time, and space. We can then transform the standard Time-Dependent Schrödinger Equation (TDSE) into a covariant, background-independent version simply by scaling the time derivative by a universal factor derived from the boost energy.This shift from the time domain (time-dependent) to the energy domain (energy-dependent) has profound consequences: a covariant TDSE emerges; both relativistic and non-relativistic dispersion are recovered from the standard non-relativistic Hamiltonian; inverse relativistic effects appear at ultra-low energies; and a single wave equation governs quantum evolution across all energy scales and particle spins. Most importantly, we free quantum mechanics from its reliance on a fixed temporal background and place it on equal footing with general relativity, thus laying the foundation for their ultimate unification.
By positing energy as intrinsic and independent—with momentum, time, and spatial properties emerging as functions of boost energy (either directly or indirectly)—E-Theory achieves a fully covariant, background-independent formulation for quantum mechanics. This paper demonstrates that by anchoring special relativity in the invariant energy–momentum relationship and reinterpreting energy as an independent variable rather than a dependent property, we transform the traditional four-vector—typically expressed via complex differential relationships—into three simple algebraic functions for momentum, time, and space. We can then transform the standard Time-Dependent Schrödinger Equation (TDSE) into a covariant, background-independent version simply by scaling the time derivative by a universal factor derived from the boost energy.This shift from the time domain (time-dependent) to the energy domain (energy-dependent) has profound consequences: a covariant TDSE emerges; both relativistic and non-relativistic dispersion are recovered from the standard non-relativistic Hamiltonian; inverse relativistic effects appear at ultra-low energies; and a single wave equation governs quantum evolution across all energy scales and particle spins. Most importantly, we free quantum mechanics from its reliance on a fixed temporal background and place it on equal footing with general relativity, thus laying the foundation for their ultimate unification.
By positing energy as intrinsic and independent—with momentum, time, and spatial properties emerging as functions of boost energy (either directly or indirectly)—E-Theory achieves a fully covariant, background-independent formulation for quantum mechanics. This paper demonstrates that by anchoring special relativity in the invariant energy–momentum relationship and reinterpreting energy as an independent variable rather than a dependent property, we transform the traditional four-vector—typically expressed via complex differential relationships—into three simple algebraic functions for momentum, time, and space. We can then transform the standard Time-Dependent Schrödinger Equation (TDSE) into a covariant, background-independent version simply by scaling the time derivative by a universal factor derived from the boost energy.This shift from the time domain (time-dependent) to the energy domain (energy-dependent) has profound consequences: a covariant TDSE emerges; both relativistic and non-relativistic dispersion are recovered from the standard non-relativistic Hamiltonian; inverse relativistic effects appear at ultra-low energies; and a single wave equation governs quantum evolution across all energy scales and particle spins. Most importantly, we free quantum mechanics from its reliance on a fixed temporal background and place it on equal footing with general relativity, thus laying the foundation for their ultimate unification.
Solitary-particle quantum mechanics' inherent compatibility with special relativity is implicit in Schroedinger's postulated wave-function rule for the operator quantization of the particle's canonical three-momentum, taken together with his famed time-dependent wave-function equation that analogously treats the operator quantization of its Hamiltonian. The resulting formally four-vector equation system assures proper relativistic covariance for any solitary-particle Hamiltonian operator which, together with its canonical three-momentum operator, is a Lorentz-covariant four-vector operator. This, of course, is always the case for the quantization of the Hamiltonian of a properly relativistic classical theory, so the strong correspondence principle definitely remains valid in the relativistic domain. Klein-Gordon theory impairs this four-vector equation by iterating and contracting it, thereby injecting extraneous negative-energy solutions that are not orthogonal to their positive-energy counterparts of the same momentum, thus destroying the basis of the quantum probability interpretation. Klein-Gordon theory, which thus depends on the square of the Hamiltonian operator, is as well thereby cut adrift from Heisenberg's equations of motion. Dirac theory confuses the space-time symmetry of the four-vector equation system with such symmetry for its time component alone, which it fatuously imposes, thereby breaching the strong correspondence principle for the free particle and imposing the starkly unphysical momentum-independence of velocity. Physically sensible alternatives, with external electromagnetic fields, to the Klein-Gordon and Dirac equations are derived, and the simple, elegant symmetry-based approach to antiparticles is pointed out.
We extend the framework of Unified Quantum Mechanics (UQM) to the relativistic domain by formulating the Dirac equation entirely in terms of real-valued fields. In this approach, the complex imaginary unit i is systematically replaced by the temporal Hilbert transform operator Ht, which satisfies the anti-involution property Ht2=−I and acts as a dimensionless isometric operator. The resulting theory is expressed as a coupled system of real-valued equations for a primary field ψ and its Hilbert-transformed partner ϕ=Ht[ψ], whose evolution is governed exclusively by local differential operators. We demonstrate that all essential algebraic and symmetry structures of relativistic quantum mechanics are preserved within this real-valued formulation. In particular, the full Clifford algebra of the Dirac matrices, Lorentz covariance, and the relativistic energy-momentum relation are recovered exactly. A rigorous isomorphism with the conventional complex Dirac equation is established via the analytic signal representation ψa=ψ−iϕ, under which the standard U(1) gauge symmetry emerges naturally as a global SO(2) rotation in the real field space. The resulting formulation is therefore operationally and predictively equivalent to the standard complex theory. The conserved scalar density ρ=ψ†ψ+ϕ†ϕ=∣ψa∣2 is shown to arise as the squared envelope (intensity) of a real physical field and admits a direct interpretation as a local field intensity with well-defined physical dimensions. Probability conservation is recovered through the continuity equation, while normalization in standard quantum mechanics is reinterpreted as a rescaling by the conserved total field. Stability of matter, expressed as energy positivity, is shown to restrict the physical solution space to analytic signals, enforcing a Hilbert-pair structure and eliminating independent complex degrees of freedom. This work demonstrates that the complex structure of relativistic quantum mechanics is not fundamental but emerges from the analytically constrained dynamics of real-valued fields, providing a unified and physically transparent foundation for the Dirac theory.
We consider the two basic theories of the standard physics: (1) the theory of relativity, as a four-dimensional time-space description of our universe, with the invariance of the time-space interval which leads to the Lorentz transformation, and (2) quantum mechanics, based on the Schrödinger equation, with a solution called wave function. However, we find that this equation is very unsatisfactory, describing fully unlocalized free particles, any initially localized particle rapidly spreading in space, in disagreement with the fundamental Hamilton equations. In agreement with the Hamilton equations, we describe a quantum particle by propagation wave functions in the coordinate and momentum spaces, with the Lagrangian in the time dependent phase instead of the Hamiltonian coming from the Schrödinger equation. With the relativistic Lagrangian, we obtain wave functions describing invariant distributions propagating in space.
Starting from three fundamental duality relations (time-energy, space-momentum, angle-angular momentum), we establish an integral equation of quantum action and its dual counterpart. This integral equation directly links the evolution of the wave function to the accumulated action of spacetime and rotational degrees of freedom, forming a unified framework for quantum theory. Through semiclassical expansion, local approximation, and relativistic covariance, we rigorously derive the Schr\"odinger equation, Klein-Gordon equation, Dirac equation, Heisenberg equation, Schwinger-Dyson equation, Feynman path integral, Yang-Mills equations, Einstein field equations, and the Friedmann and Schwarzschild solutions. The framework also yields the kinematic effects of special relativity (time dilation, length contraction, mass-energy equivalence) as consequences of the duality structure. Moreover, the nonlocal kernel in the integral equation gives an exponential damping factor in momentum space, providing an intrinsic regularization mechanism for ultraviolet divergences. We extend the framework to quantum electrodynamics (QED), quantum chromodynamics (QCD), the electroweak theory, the full Standard Model, and quantum gravity, obtaining dual formulations for each. From the integral equation and its dual, we automatically derive quantization conditions for energy, momentum, angular momentum, and their duals, and propose experimental schemes to observe these discrete effects. All derivations are complete and rigorous, based on the same integral equation, providing a possible answer to Dirac's criticism that "quantum electrodynamics lacks a fundamental equation" and opening a new path toward a unified theory.
Non-relativistic quantum mechanics is shown to emerge from classical mechanics through the requirement of a relativity principle based on special transformations acting on position and momentum uncertainties. These transformations keep the Heisenberg inequalities invariant and form a group. They are related to dilatations of space variables provided the quantum potential is added to the classical Hamiltonian functional. The Schrödinger equation appears to have a nonunitary and nonlinear companion acting in another time variable. Evolution in this time seems related to the state vector reduction.