Quantum Interactions: Tale of Colors in Fruits and Vegetables

The vivid colors of fruits and vegetables arise from quantum interactions or effects in pigment molecules. Conjugated π-electron systems in pigments like beta-carotene and chlorophyll absorb specific wavelengths of visible light via electronic transitions. Moreover, using the particle-in-a-box model, we can estimate these transitions and link them to observed colors. Hence, this results from unabsorbed, complementary wavelengths.