Abstract
The roles of Lie groups in Feynman’s path integrals in non-relativistic quantum mechanics are discussed. Dynamical as well as geometrical symmetries are found useful for path integral quantization. Two examples having the symmetry of a non-compact Lie group are considered. The first is the free quantum motion of a particle on a space of constant negative curvature. The system has a group SO (d, 1) associated with the geometrical structure, to which the technique of harmonic analysis on a homogeneous space is applied. As an example of a system having a non-compact dynamical symmetry, the (d -dimensional harmonic oscillator is chosen, which has the non-compact dynamical group SU (1,1) besides its geometrical symmetry SO (d). The radial path integral is seen as a convolution of the matrix functions of a compact group element of SU (1,1) on the continuous basis.
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Inomata, A., Junker, G. (1994). Path Integrals and Lie Groups. In: Tanner, E.A., Wilson, R. (eds) Noncompact Lie Groups and Some of Their Applications. NATO ASI Series, vol 429. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1078-5_11
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DOI: https://doi.org/10.1007/978-94-011-1078-5_11
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