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Electric dipole moments of atoms can arise from P-odd and T-oddelectron--nucleon couplings. This work studies a general class of dimension-sixelectron--nucleon interactions mediated by Lorentz-violating tensors of ranksranging from $1$ to $4$. The possible couplings are listed as well as theirbehavior under C, P, and T, allowing us to select the couplings compatible withelectric-dipole-moment physics. The unsuppressed contributions of thesecouplings to the atom's hamiltonian can be read as equivalent to an electricdipole moment. The Lorentz-violating coefficients' magnitudes are limited usingelectric-dipole-moment measurements at the levels of$3.2\times10^{-31}\text{(eV)}^{-2}$ or $1.6\times10^{-33}\text{(eV)}^{-2}$.

Constraining Dimension-Six Nonminimal Lorentz-Violating Electron--Nucleon Interactions with EDM Physics [CPT'19]