Superintegrable potentials on 3D Riemannian and Lorentzian spaces with nonconstant curvature

• Published in: Physics of atomic nuclei 2010-02, Vol.73 (2), p.255-263
• Main Authors: Ballesteros, A., Enciso, A., Herranz, F. J., Ragnisco, O.
• Format: Article
• Language: English
• Subjects: ANTI DE SITTER SPACE; CONFIGURATION; ELECTRONIC EQUIPMENT; Elementary Particles and Fields Theory; EUCLIDEAN SPACE; HAMILTONIANS; HYPERBOLIC CONFIGURATION; LIE GROUPS; LORENTZ GROUPS; MATHEMATICAL OPERATORS; MATHEMATICAL SPACE; MINKOWSKI SPACE; OSCILLATORS; Particle and Nuclear Physics; PHASE SPACE; Physics; Physics and Astronomy; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; POINCARE GROUPS; POTENTIALS; QUANTUM OPERATORS; RIEMANN SPACE; SL GROUPS; SPACE; SPHERICAL CONFIGURATION; SYMMETRY GROUPS; THREE-DIMENSIONAL CALCULATIONS
• ISSN: 1063-7788; 1562-692X
• DOI: 10.1134/S1063778810020092

A quantum sl (2,ℝ) coalgebra (with deformation parameter z) is shown to underly the construction of a large class of superintegrable potentials on 3D curved spaces, that include the nonconstant curvature analog of the spherical, hyperbolic, and (anti-)de Sitter spaces. The connection and curvature tensors for these “deformed“ spaces are fully studied by working on two different phase spaces. The former directly comes from a 3D symplectic realization of the deformed coalgebra, while the latter is obtained through a map leading to a spherical-type phase space. In this framework, the nondeformed limit z → 0 is identified with the flat contraction leading to the Euclidean and Minkowskian spaces/potentials. The resulting Hamiltonians always admit, at least, three functionally independent constants of motion coming from the coalgebra structure. Furthermore, the intrinsic oscillator and Kepler potentials on such Riemannian and Lorentzian spaces of nonconstant curvature are identified, and several examples of them are explicitly presented.