Probing the small-scale structure of spacetime

Many theoretical attempts at understanding the Planck-scale structure of spacetime can accommodate minute departures from Lorentz and CPT invariance. At presently attainable energies, such effects are expected to be accurately described within effective field theory. Such a field theory, in turn, can be employed to identify currently feasible experimental tests. This work presents an overview of the theoretical motivations, the low-energy framework, and the phenomenological implications within this context.