The ability of light to pass through glass is not an example of quantum tunneling. Instead, it can be explained by the properties of transparent materials and the interaction of light with matter.
When light interacts with a material such as glass, it can be transmitted, absorbed, or reflected. In the case of transparent materials like glass, the atoms or molecules within the material have specific energy levels associated with their electrons. When light interacts with these electrons, it can be absorbed and then re-emitted, or it can pass through the material without being absorbed significantly.
The transparency of glass is due to its molecular structure. Glass is composed of atoms or molecules arranged in a regular pattern, which allows light to pass through without being significantly absorbed or scattered. The specific properties of glass, such as its chemical composition and the arrangement of its atoms or molecules, determine how it interacts with light.
Quantum tunneling, on the other hand, refers to a phenomenon in quantum mechanics where particles can pass through energy barriers that would be classically impassable. It involves the probabilistic behavior of particles at the quantum level and is typically observed with subatomic particles like electrons. Quantum tunneling is not directly related to the transparency of materials like glass.
In summary, the transparency of glass is not an example of quantum tunneling. It is a result of the specific properties of the material and the interaction of light with matter at the atomic or molecular level.