Jul 18 – 23, 2022
University of Vienna
Europe/Vienna timezone

Fractons, geometrically

Not scheduled
20m
Audimax (University of Vienna)

Audimax

University of Vienna

Universitätsring 1, 1010 Vienna, Austria

Speaker

Dr Stephen Angus (Asia Pacific Center for Theoretical Physics)

Description

I will discuss how fracton physics can be studied systematically within the geometric framework of double field theory (DFT). I will argue that the restricted mobility and large degeneracy of quantum states can be attributed to the generalized geodesics and infinite-dimensional isometries present in non-Riemannian backgrounds of DFT. Moreover, it turns out that a DFT Yang-Mills or Maxwell theory reduces to an ordinary one coupled to a strain tensor of elasticity theory, providing a unifying description of photons and phonons. I will show that when charged particles are minimally coupled to this photon-phonon theory, their immobility along non-Riemannian directions is lifted to a saturation velocity, and the particles acquire an effective mass even in the purely Riemannian case, yielding predictions for polaron physics and time crystals.

Primary authors

Jeong-Hyuck Park (Sogang University) Dr Minkyoo Kim (Sogang University) Dr Stephen Angus (Asia Pacific Center for Theoretical Physics)

Presentation materials

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