PT Journal
AU Beltran-Palau, P
   Navarro-Salas, J
   Pla, S
TI Translational anomaly of chiral fermions in two dimensions
SO Physical Review D
JI Phys. Rev. D
PY 2019
BP 105008
EP 5pp
VL 99
IS 10
DI 10.1103/PhysRevD.99.105008
LA English
AB It is well known that a quantized two-dimensional Weyl fermion coupled to gravity spoils general covariance and breaks the covariant conservation of the energy-momentum tensor. In this brief article, we point out that the quantum conservation of the momentum can also fail in flat spacetime, provided the Weyl fermion is coupled to a time-varying homogeneous electric field. This signals a quantum anomaly of the space-translation symmetry, which has not been highlighted in the literature so far.
ER