Classical Limit
The Wigner function allows one to study the classical limit, offering a comparison of the dynamics in classical and quantum phase space.
It has recently been suggested that the Wigner function approach can be viewed as a quantum analogy to the operatorial formulation of classical mechanics introduced in 1932 by Bernard Koopman and John von Neumann: the time evolution of the Wigner function approaches, in the limit → 0, the time evolution of the Koopman–von Neumann wavefunction of a classical particle.
Read more about this topic: Wigner Quasiprobability Distribution
Famous quotes containing the words classical and/or limit:
“Against classical philosophy: thinking about eternity or the immensity of the universe does not lessen my unhappiness.”
—Mason Cooley (b. 1927)
“Moreover, the universe as a whole is infinite, for whatever is limited has an outermost edge to limit it, and such an edge is defined by something beyond. Since the universe has no edge, it has no limit; and since it lacks a limit, it is infinite and unbounded. Moreover, the universe is infinite both in the number of its atoms and in the extent of its void.”
—Epicurus (c. 341–271 B.C.)