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Physics of extra dimensions
Author(s) -
Antoniadis I.
Publication year - 2011
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.201100072
Subject(s) - theoretical physics , string theory , physics , string (physics) , hierarchy problem , large extra dimension , hierarchy , extra dimensions , constant (computer programming) , gravitation , universe , classical mechanics , particle physics , quantum mechanics , supersymmetry , computer science , law , political science , programming language
In the first part of my lectures, I discuss the main motivations and directions for physics beyond the Standard Model of elementary particles and I give a short introduction on string theory. This theory introduces a new physical constant, the string length, under which a new fundamental structure appears, changing drastically the laws of nature. In particular, lowering the string scale in the TeV region provides a theoretical framework for solving the so‐called mass hierarchy problem: the apparent weakness of gravity can be accounted by the existence of large internal dimensions, in the submillimeter region, and transverse to a braneworld where our observed universe is confined.