On Kaluza-Klein theory |
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Authors: | Abdus Salam J Strathdee |
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Affiliation: | 1. International Centre for Theoretical Physics, Trieste, Italy;2. Imperial College, London, England |
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Abstract: | Assuming the compactification of 4 + K-dimensional space-time implied in Kaluza-Kleintype theories, we consider the case in which the internal manifold is a quotient space, . We develop normal mode expansions on the internal manifold and show that the conventional gravitational plus Yang-Mills theory (realizing local G symmetry) is obtained in the leading approximation. The higher terms in the expansions give rise to field theories of massive particles. In particular, for the original Kaluza-Klein 4 + 1-dimensional theory, the higher excitations describe massive, charged, purely spin-2 particles. These belong to infinite dimensional representations of an O(1,2). |
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