$Δ-$string - a hybrid between wormhole and string

The flux tube solutions in 5D Kaluza-Klein theory can be considered as a string-like object - $Δ-$string. The initial 5D metric can be reduced to some inner degrees of freedom living on the $Δ-$string. The propagation of electromagnetic waves through the $Δ-$string is considered. It is shown that the difference between $Δ$ and ordinary strings are connected with the fact that for the $Δ-$string such limitations as critical dimensions are missing.

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