Physics of Extra Dimensions as IR Limit of Four-Dimensional Theories
S. Pokorski (IFT, Warsaw Univ.)
TL;DR
This paper explores how four-dimensional gauge theories can mimic the physics of extra dimensions in the infrared limit, with Kaluza-Klein states emerging from symmetry breaking.
Contribution
It presents a method to construct four-dimensional renormalizable gauge theories that reproduce extra-dimensional gauge dynamics in the IR limit.
Findings
Four-dimensional theories can generate Kaluza-Klein states from gauge symmetry structures.
Infrared dynamics are governed by spontaneous symmetry breaking.
The approach provides a new way to model extra dimensions within four-dimensional frameworks.
Abstract
I discuss the recent work done in collaboration with Chris Hill, Jing Wang and Hsin-Chia Cheng. We construct four-dimensional renormalizable gauge theories which, in their infrared limit, generate the dynamics of gauge interactions in flat extra dimensions. In this construction, the Kaluza-Klein states of extra dimensions arise from having many gauge symmetries in four dimensions. The IR limit is determined by the dynamics of spontaneous breakdown of those symmetries.
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