Fractons in curved space
Akash Jain, Kristan Jensen
SciPost Phys. 12, 142 (2022) · published 29 April 2022
- doi: 10.21468/SciPostPhys.12.4.142
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Abstract
We consistently couple simple continuum field theories with fracton excitations to curved spacetime backgrounds. We consider homogeneous and isotropic fracton field theories, with a conserved $U(1)$ charge and dipole moment. Coupling to background fields allows us to consistently define a stress-energy tensor for these theories and obtain the respective Ward identities. Along the way, we find evidence for a mixed gauge-gravitational anomaly in the symmetric tensor gauge theory which naturally couples to conserved dipoles. Our results generalise to systems with arbitrarily higher conserved moments, in particular, a conserved quadrupole moment.
Cited by 44
Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 2 Akash Jain,
- 3 Kristan Jensen
- 1 Institute of Physics, University of Amsterdam [IoP, UvA]
- 2 Dutch Institute for Emergent Phenomena [DIEP]
- 3 University of Victoria