Prospects for testing Lorentz symmetry with highly charged ions
Abstract
We investigate the prospects for testing Lorentz symmetry using highly charged ions. We derive the Lorentz-violating energy shifts relevant to Zeeman and Zeeman-hyperfine transitions within the ground state of H-like ions and to Zeeman and Zeeman-fine transitions within the ground state of B-like ions. The resulting signals include sidereal variations through the first harmonic of the sidereal frequency for H-like ions and through the third harmonic for B-like ions. For certain SME coefficients whose contributions scale with the fourth power of the electron momentum, the large electron momentum in H-like ions can provide sensitivity competitive with the best existing bounds at the precision achievable in H-like-ion spectroscopy. We also find that B-like-ion spectroscopy can provide competitive sensitivity to certain SME coefficients.
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BibTeX
@misc{vargas2026prospects,
title = {{Prospects for testing Lorentz symmetry with highly charged ions}},
author = {Arnaldo J. Vargas},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.20953},
eprint = {2609.20953},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.20953},
}
RIS
TY - UNPB
TI - Prospects for testing Lorentz symmetry with highly charged ions
AU - Arnaldo J. Vargas
PY - 2026
DA - 2026/09/17
PB - arXiv
DO - 10.48550/arxiv.2609.20953
UR - https://arxiv.org/abs/2609.20953
AB - We investigate the prospects for testing Lorentz symmetry using highly charged ions. We derive the Lorentz-violating energy shifts relevant to Zeeman and Zeeman-hyperfine transitions within the ground state of H-like ions and to Zeeman and Zeeman-fine transitions within the ground state of B-like ions. The resulting signals include sidereal variations through the first harmonic of the sidereal frequency for H-like ions and through the third harmonic for B-like ions. For certain SME coefficients whose contributions scale with the fourth power of the electron momentum, the large electron momentum in H-like ions can provide sensitivity competitive with the best existing bounds at the precision achievable in H-like-ion spectroscopy. We also find that B-like-ion spectroscopy can provide competitive sensitivity to certain SME coefficients.
ER -