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We systematically investigated the (eEDM) searches of PbH using a two-component approach. The parity- and time-reversal symmetry violation constants of ground and excited states, including internal effective electric field Eeff, electron\u2013nucleon scalar\u2013pseudoscalar interaction constant WP,T, and nuclear magnetic quadrupole moment, were obtained and compared to other molecules. In addition, we designed two experimental methods to measure the sensitivity of the eEDM, indicating that the Faraday rotation method could greatly improve its sensitivity.<\/jats:p>","DOI":"10.1063\/5.0225370","type":"journal-article","created":{"date-parts":[[2024,10,30]],"date-time":"2024-10-30T10:57:33Z","timestamp":1730285853000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Faraday rotation method improves the upper limit of the electron electric<b>\u2013<\/b>dipole<b>\u2013<\/b>moment sensitivity"],"prefix":"10.1063","volume":"161","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2214-9610","authenticated-orcid":false,"given":"Huagang","family":"Xiao","sequence":"first","affiliation":[{"name":"Institute of Atomic and Molecular Physics, Sichuan University 1 , Chengdu 610065,","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruijie","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Nuclear Engineering, Seoul National University 2 , 1 Gwanak-ro, Gwanak-gu, Seoul 08826,","place":["South Korea"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4065-3802","authenticated-orcid":false,"given":"Tao","family":"Gao","sequence":"additional","affiliation":[{"name":"Institute of Atomic and Molecular Physics, Sichuan University 1 , Chengdu 610065,","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"317","published-online":{"date-parts":[[2024,10,30]]},"reference":[{"issue":"1","key":"2024103010501440200_c1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1103\/revmodphys.76.1","volume":"76","year":"2003","journal-title":"Rev. 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