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SUMMARY:Stephen Angus (APCTP)
DTSTART:20220127T020000Z
DTEND:20220127T030000Z
DTSTAMP:20260423T005837Z
UID:ATP2022/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ATP2022/12/"
 >Fractons\, geometrically</a>\nby Stephen Angus (APCTP) as part of Advance
 s in Theoretical Physics 2022\n\n\nAbstract\nI will discuss how fracton ph
 ysics can be studied systematically within the geometric framework of Doub
 le Field Theory (DFT).  Following an introductory review of fractons\, I w
 ill argue that their restricted mobility and large degeneracy of quantum s
 tates can be attributed to the generalized geodesics and infinite-dimensio
 nal isometries present in non-Riemannian backgrounds of DFT.  Furthermore\
 , we find that a doubled pure Yang-Mills or Maxwell theory reduces to an o
 rdinary one interacting with a strain tensor theory\, giving a unifying de
 scription of photons and phonons.  I will show how this photon-phonon theo
 ry\, when minimally coupled to a charged particle in a non-Riemannian back
 ground\, lifts the particle immobility to a saturation velocity and gives 
 a modified dispersion relation.\n
LOCATION:https://researchseminars.org/talk/ATP2022/12/
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