World Quantum Theory: A Unified Framework for Quantum and Classical Physics Based on FrequencyAbstractThis paper proposes the "World Quantum" as a fundamental unit of the physical world, whose intrinsic motion is based on the Planck frequency, forming the quantum foundation of space-time and energy. Within this framework, a generalized particle wavelength formula λ=xℏ/p is derived, where the projective coupling factor x reflects environmental modulation of quantum behavior. Momentum, mass, and total energy formulas are further established, and the "World Factor" Φw=(c/v)2 is introduced to quantify the bending effect of external energy fields on the particle's trajectory. In this model, the de Broglie relation λ=h/p can be regarded as a resonant special case under terrestrial conditions with x=2π. The total energy expression Eq=xℏfwΦw unifies wave-particle duality with relativistic dynamics, offering a new perspective for the integration of classical and quantum physics, and proposes several experimentally testable schemes.Keywords: World Quantum, Generalized Wavelength Formula, Projective Coupling Factor, World Factor, Frequency Model, Negative Feedback Mechanism Note: The paper concludes with two detailed follow-up studies based on this framework: one on the fundamental nature of mass and momentum, and the other on the essential origin of voltage in Josephson junctions.