Tachyon bound state in Yang-Mills theory and instability of the vacuum |
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Authors: | R Fukuda |
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Institution: | Research Institute for Fundamental Physics, Kyoto University, Kyoto, Japan |
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Abstract: | Existence of the tachyon bound state in a Yang-Mills system is discussed using the ladder approximation for the BS equation. Due to the attractive force between two massless gauge fields in the group singlet channel a tachyon pole is formed for whatever small coupling constant. The normal vacuum is expected to be unstable with respect to the condensation of this tachyon field. |
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