In quantum mechanics, degeneracy refers to a situation where two or more different quantum states of a system have the same energy level.
These states are said to be degenerate, and the number of such states sharing the same energy is called the degree of degeneracy, or simply the degeneracy.
This phenomenon has important implications for understanding the behavior of quantum systems, especially in condensed matter physics and astrophysics. Degeneracy influences various properties like conductance, chemical forces, and the behavior of dense stellar objects.
