The new quantum theory proposes that photons have an eccentric nucleus of mass and charge that causes them to spin and travel in a sinusoidal wave path. This explains phenomena such as wave-particle duality and the formation of electromagnetic waves. Photons generate electric and magnetic fields as they spin due to the movement of their off-center nucleus, and interference occurs when photons' angular momentums constructively add. The theory aims to replace the temporary solution of wave-particle duality with a unified model of photons exhibiting both wave and particle properties due to their spinning eccentric nucleus.