Abstract
Gravity acts anywhere, but not every time. Alpha theory proposes that gravity engages only when a particle's velocity approaches or drops below a critical threshold known as the Alpha Velocity (Va). This theory takes its name from the Greek letter alpha (α), symbolizing a threshold or starting point. This threshold varies based on the particle's nature (massive or massless) and is influenced by the gravitational field and for quantum particles, the particle's wavelength. The theory distinguishes three formulations of Va: the Non-Relativistic Form (NRF), the Relativistic Form (RF), and the Wavelength-Based Form (WB), and show how they integrate to model gravitational phenomena across massive and massless particles. This model predicts gravity weakening or effectively shutting off above critical velocities or for long-wavelength quantumsystems, naturally introducing quantum limits to curvature and interaction. Alpha theory introduces a quantum relation that describes a wavelength-depended experience of gravitational strength for quantum particles, where gravitational experience is tied to the internal properties of each particle. This theory enables predictions in gravitational lensing, redshift, time dilation, and black hole physics