I will discuss the construction and the properties of effective field theories for fractonic phases. Fracton order is a new type of topological phase of matter, which has been the subject of intense study due to its quite intriguing properties, being originally observed in lattice spin models. These phases are typically gapped and possess quasi-particle excitations that have restricted mobility (type-I fractons) or that are even completely immobile (type-II fractons). Furthermore, in general such systems exhibit ground state degeneracy that depends not only on the topology of the manifold but also on the geometry, in the sense that it involves details of the lattice. This dependence on the details of the lattice is a very unusual physical property, since it corresponds to a kind of infrared/ultraviolet mixing. This suggests that fracton systems do not satisfy the usual decoupling between high and low-energy physical properties, or, at least, there is no complete decoupling between certain degrees of freedom of high and low energies. These exotic properties of fractonic systems make the problem of finding effective low-energy theories quite challenging and, at first sight, even unlikely.

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