General form of the Schrödinger equation for one particle in any dimension

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created: 2022-01-06 03:02:19
modified: 2022-01-10 04:13:04

See the same for the 1D case: General form of the Schrödinger equation for one particle in 1D

The Hamiltonian operator is usually expressed as the sum of two operators corresponding to the kinetic and potential energies of a system:

Where the potential energy is generalized

Where is a vector.
And for a particle moving in , the kinetic energy is:

Where is the momentum operator, it is a vector of operators and is the mass of the particle, is the nabla operator.

The Hamiltonian operator takes the form:

So the Schrödinger equation of the system is:

Canonical commutation relations

The position and momentum operators commute if they operate in different dimensions:

See Commutator of position and momentum operators.
And of course they commute with themselves in different dimensions as well: