Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-08-12
Physics
High Energy Physics
High Energy Physics - Theory
21 pages
Scientific paper
We generalize the formulation of non-commutative quantum mechanics to three dimensional non-commutative space. Particular attention is paid to the identification of the quantum Hilbert space in which the physical states of the system are to be represented, the construction of the representation of the rotation group on this space, the deformation of the Leibnitz rule accompanying this representation and the implied necessity of deforming the co-product to restore the rotation symmetry automorphism. This also implies the breaking of rotational invariance on the level of the Schroedinger action and equation as well as the Hamiltonian, even for rotational invariant potentials. For rotational invariant potentials the symmetry breaking results purely from the deformation in the sense that the commutator of the Hamiltonian and angular momentum is proportional to the deformation.
Chakraborty Biswajit
Scholtz Frederik G.
Sinha Debabrata
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