Physics – Quantum Physics
Scientific paper
2001-07-26
Phys. Lett. A 292 (2002) 238-242.
Physics
Quantum Physics
LaTeX 12 pages, revised version, accepted for Physics Letters A
Scientific paper
10.1016/S0375-9601(01)00807-6
We show that for general deformations of SU(2) algebra, the dynamics in terms of ladder operators is preserved. This is done for a system of precessing magnetic dipole in magnetic field, using the unitary phase operator which arises in the polar decomposition of SU(2) operators. It is pointed out that there is a single phase operator dynamics underlying the dynamics of usual and deformed ladder operators.
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