Fock Space
These states are named after the soviet physicist vladimir fock.
Fock space. Fock spaces were first introduced by v a. Fok in this simplest case. Fock states play an important role in the second quantization formulation of quantum mechanics.
In quantum mechanics a fock state or number state is a quantum state that is an element of a fock space with a well defined number of particles or quanta. In fact when conditions are good fock space emerges as the gns hilbert space for some privileged vacuum state of the algebra of observables. It is named after v.
Fock who first introduced it in his 1932 paper konfigurationsraum und zweite quantelung. They are also of great use in quantum eld theory for they provide the setup for the so called second quantization procedure. We briefly describe how this emergence occurs before proceeding to raise some problems for the naive fock space story.
The fock space is an algebraic construction used in quantum mechanics to construct the quantum states space of a variable or unknown number of identical particles from a single particle hilbert space h.