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Proceedings of the Indian Academy of Sciences - Section A

The rigid rotator according to relativistic quantum mechanics

K. N. Srinivasa Rao, D. Saroja

Published Jun 1, 1965• 2 citations
Publisher
DOI
10.1007/bf03049260

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This paper aims at studying the spin once again. The departure point is thus the Stern and Gerlach experimental results that can be described in a coherent way in the frame of quantum mechanics only. Instead, the relativistic mechanics point of view is proposed here following the work presented in a previous article about rigid body rotation. Indeed, a careful study of the horizon of this relativistic rigid body rotation appears to be invariant from any observation angle in full agreement with the spin property.
The non-relativistic version of the multi-temporal quantization scheme of relativistic particles in a family of non-inertial frames (see hep-th/0502194) is defined. At the classical level the description of a family of non-rigid non-inertial frames, containing the standard rigidly linear accelereted and rotating ones, is given in the framework of parametrized Galilei theories. Then the multi-temporal quantization, in which the gauge variables, describing the non-inertial effects, are not quantized but considered as c-number generalized times, is applied to non relativistic particles. It is shown that with a suitable ordering there is unitary evolution in all times and that, after the separation of center of mass, it is still possible to identify the inertial bound states. The few existing results of quantization in rigid non-inertial frames are recovered as special cases.