پروز ِ برهمنهش parvaz-e barhamneheš
*Fr.: principe de superposition*
1) *Math.*: The principle concerned with homogeneous and
non-homogeneous → *linear differential equation*s,
stating that two or more solutions to a linear equation or set of linear equations can be added
together so that their sum is also a solution.
2) One of the most fundamental principles of → *quantum mechanics*
which distinctly marks the departure from classical concepts. It holds that
any linear superposition of → *wave function*s is also a
possible wave function. Simply put, the state of an object is all its possible
states simultaneously, as long as we do not look to check. It is the
measurement itself that causes the object to be limited to a single
possibility. The superposition principle is rooted in the linearity of
→ *Schrödinger's equation*. Hence if two solutions of the wave
function, ψ_{1} and ψ_{2}, are known, other solutions, of the form:
ψ = *a*_{1}ψ_{1} + a_{2}ψ_{2}
also represent possible states of the system. → *superposition*; → *principle*. |