Electromagnetically induced transparency

Electromagnetically Induced Transparency (EIT) is a quantum phenomenon where a normally opaque material becomes transparent to a specific light frequency when illuminated with another laser beam. This occurs because the laser creates a special interference effect within the atoms, canceling out absorption at that frequency. As a result, light passes through the material with little to no loss, enabling control over light transmission. EIT has important applications in quantum computing, secure communication, and precise measurements by allowing scientists to slow, store, or manipulate light pulses within a medium.