Zero-point length, extra-dimensions and string T-dualityReportar como inadecuado



 Zero-point length, extra-dimensions and string T-duality


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In this paper, we are going to put in a single consistent framework apparently unrelated pieces of information, i.e. zero-point length, extra-dimensions, string T-duality. More in details we are going to introduce a modified Kaluza-Klein theory interpolating between high-energy string theory and low-energy quantum field theory. In our model zero-point length is a four dimensional ``virtual memory of compact extra-dimensions length scale. Such a scale turns out to be determined by T-duality inherited from the underlying fundamental string theory. From a low energy perspective short distance infinities are cut off by a minimal length which is proportional to the square root of the string slope, i.e. \sqrt{\alpha^\prime}. Thus, we provide a ``bridge between the ultra-relativistic string domain and the low energy arena of point-particle quantum field theory.



Autor: Euro Spallucci; Michele Fontanini

Fuente: https://archive.org/







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