Journal
PHYSICAL REVIEW D
Volume 99, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.105008
Keywords
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Funding
- [FIS2017-84440-C2-1-P]
- [FIS2017-91161-EXP]
- [SEJI/2017/042]
- [SEV-2014-0398]
- [FPU17/03712]
- [FPU16/05287]
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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.
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