What Is Antisymmetric Wave Function?

A wavefunction that is antisymmetric with respect to electron interchange is one whose output changes sign when the electron coordinates are interchanged, as shown below. ˆP12|ψ(r1,r2)⟩=−|ψ(r2,r1)⟩ These particles are called fermions and have half-integer spin and include electrons, protons, and neutrinos.

Why is wave function antisymmetric?

) of the system. This simple statement has the enormous consequence of dividing all particles in nature into one of two classes. Particles whose wave functions which are anti-symmetric under particle interchange have half-integral intrinsic spin, and are termed fermions. ...

What is antisymmetric principle?

All particles with half-integral spin (fermions) are described by antisymmetric wavefunctions, and all particles with zero or integral spin (bosons) are described by symmetric wavefunctions. ...