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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S2079562925010142</article-id><article-id custom-type="edn" pub-id-type="custom">EXNTIJ</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-546</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Ускорители заряженных частиц для ядерных технологий</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Charged Particles Accelerators for Nuclear Technologies</subject></subj-group></article-categories><title-group><article-title>СПИНОРНОЕ ОПИСАНИЕ СТРУКТУР ТИПА ЗАМОРОЖЕННОГО И КВАЗИ-ЗАМОРОЖЕННОГО СПИНА ДЛЯ ИЗМЕРЕНИЯ ЭДМ МЕТОДОМ ЧАСТОТНОЙ ОБЛАСТИ</article-title><trans-title-group xml:lang="en"><trans-title>SPINOR DESCRIPTION OF FROZEN AND QUASI-FROZEN SPIN STRUCTURES FOR THE EDM MEASUREMENT IN A FREQUENCY DOMAIN</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мельников</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Melnikov</surname><given-names>A. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сеничев</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Senichev</surname><given-names>Yu. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аксентьев</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Aksentyev</surname><given-names>A. E.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колокольчиков</surname><given-names>С. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolokolchikov</surname><given-names>S. D.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт ядерных исследований РАН;&#13;
Институт теоретической физики им. Л.Д. Ландау РАН;&#13;
Московский физико-технический институт (национальный исследовательский университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Nuclear Research, Russian Academy of Sciences;&#13;
Landau Institute of Theoretical Physics, Russian Academy of Sciences;&#13;
Moscow Institute of Physics and Technology (National Research University)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт ядерных исследований РАН;&#13;
Московский физико-технический институт (национальный исследовательский университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Nuclear Research, Russian Academy of Sciences;&#13;
Moscow Institute of Physics and Technology (National Research University)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт ядерных исследований РАН;&#13;
Московский физико-технический институт (национальный исследовательский университет);&#13;
Национальный исследовательский ядерный университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Nuclear Research, Russian Academy of Sciences;&#13;
Moscow Institute of Physics and Technology (National Research University);&#13;
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2025</year></pub-date><volume>16</volume><issue>5</issue><fpage>640</fpage><lpage>644</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мельников А.А., Сеничев Ю.В., Аксентьев А.Е., Колокольчиков С.Д., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Мельников А.А., Сеничев Ю.В., Аксентьев А.Е., Колокольчиков С.Д.</copyright-holder><copyright-holder xml:lang="en">Melnikov A.A., Senichev Y.V., Aksentyev A.E., Kolokolchikov S.D.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://npe.elpub.ru/jour/article/view/546">https://npe.elpub.ru/jour/article/view/546</self-uri><abstract><p>Основные характеристики структур типа замороженного и квази-замороженного спина, такие как направление инвариантной оси и спин-тьюн, были рассчитаны в рамках спинорного формализма. В силу того, что радиальные возмущения поля играют основную роль с точки зрения систематических ошибок в эксперименте по поиску Электрического Дипольного Момента (ЭДМ), различие обоих типов структур было рассмотрено в этом отношении. Была исследована возможность исключения нелинейной добавки к частоте спин-прецесии при изменении направления инжекции в квази-замороженной структуре. Также был получен закон сложения частот для структуры общего вида с возмущениями поля в радиальном, вертикальном и продольном направлениях.</p></abstract><trans-abstract xml:lang="en"><p>The main features of the frozen and quasi-frozen spin lattice were calculated in the spinor formalism, such as a spin-tune and a direction of the invariant spin axis. As the radial field perturbations play a crucial role in the Electric Dipole Moment (EDM) measurement procedure, the difference of frozen and quasi-frozen spin lattices was investigated in this regard. The possibility of subtraction of a nonlinear term in the spin-precession frequency with the change of the injection direction in the quasi-frozen case was investigated. Furthermore, the frequency summation law was derived for the structure of a general form with perturbations in the radial, vertical and longitudinal directions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спин-орбитальная динамика</kwd><kwd>спиновый резонанс</kwd><kwd>замороженный спин</kwd><kwd>квази-замороженный спин</kwd><kwd>спинорная алгебра</kwd><kwd>электрический дипольный момент</kwd></kwd-group><kwd-group xml:lang="en"><kwd>spin-orbital dynamics</kwd><kwd>spin resonance</kwd><kwd>frozen spin</kwd><kwd>quasi-frozen spin</kwd><kwd>spinor algebra</kwd><kwd>electric dipole moment</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке гранта РНФ 22-42-04419.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Abusaif F. et al. (CpEDM Collab.). 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