\(\mathcal{P,T}\)-odd Faraday rotation in intracavity absorption spectroscopy with particle beam as a possible way to improve the sensitivity of the search for the time reflection noninvariant effects in nature

DOI10.1016/J.AOP.2021.168591zbMATH Open1482.78003arXiv2102.05157OpenAlexW3199770526MaRDI QIDQ2058619

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Publication date: 9 December 2021

Published in: (Search for Journal in Brave)

Abstract: The present constraint on the space parity ($mathcalP$) and time reflection invariance ($mathcalT$) violating electron electric dipole moment ($e$EDM) is based on the observation of the electron spin precession in an external electric field using the ThO molecule. We propose an alternative approach: observation of the $mathcalP$,~$mathcalT$-odd Faraday effect in an external electric field using the cavity-enhanced polarimetric scheme in combination with a molecular beam crossing the cavity. Our theoretical simulation of the proposed experiment with the PbF and ThO molecular beams shows that the present constraint on the $e$EDM in principle can be improved by a few orders of magnitude.

Full work available at URL: https://arxiv.org/abs/2102.05157

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