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<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">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-2430-2022-58-4-398-411</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-689</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Частица со спином 1 в цилиндрическом базисе: метод проективных операторов</article-title><trans-title-group xml:lang="en"><trans-title>A spin 1 particle in a cylindric basis: the projective operator method</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>Бурый</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Buryy</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бурый Антон Васильевич – аспирант, младший научный сотрудник.</p><p>пр. Независимости, 68-2, 220072, Минск</p></bio><bio xml:lang="en"><p>Anton V. Buryy – Postgraduate Student, Junior Researcher, B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus.</p><p>68-2, Nezavisimosti Ave., 220072, Minsk</p></bio><email xlink:type="simple">anton.buryy.97@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ивашкевич</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivashkevich</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ивашкевич Алина Валентиновна – аспирант, младший научный сотрудник.</p><p>пр. Независимости, 68-2, 220072, Минск</p></bio><bio xml:lang="en"><p>Alina V. Ivashkevich – Postgraduate Student, Junior Researcher, B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus.</p><p>68-2, Nezavisimosti Ave., 220072, Minsk</p></bio><email xlink:type="simple">ivashkevich.alina@yandex.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семенюк</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Semenyuk</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семенюк Ольга Александровна – аспирант.</p><p>бульвар Космонавтов, 21, 224016, Брест</p></bio><bio xml:lang="en"><p>Olga A. Semenyuk – Postgraduate Student, Brest State University named after A.S. Pushkin.</p><p>21, Kosmonavtov Blvd, 224016, Brest</p></bio><email xlink:type="simple">olya.vasiluyk.97@yandex.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики имени Б.И. Степанова Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Брестский государственный университет имени А.С. Пушкина</institution></aff><aff xml:lang="en"><institution>Brest State University named after A.S. Pushkin</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>01</day><month>01</month><year>2023</year></pub-date><volume>58</volume><issue>4</issue><fpage>398</fpage><lpage>411</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бурый А.В., Ивашкевич А.В., Семенюк О.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Бурый А.В., Ивашкевич А.В., Семенюк О.А.</copyright-holder><copyright-holder xml:lang="en">Buryy A.V., Ivashkevich A.V., Semenyuk O.A.</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://vestifm.belnauka.by/jour/article/view/689">https://vestifm.belnauka.by/jour/article/view/689</self-uri><abstract><p>В настоящей работе система уравнений, описывающая частицу со спином 1, изучается в цилиндрических координатах с использованием тетрадного формализма и матричного 10-мерного формализма Даффина – Кеммера – Петье. После разделения переменных для решения системы 10 уравнений относительно переменной применяется метод, предложенный Федоровым – Гронским и основанный на применении проективных операторов. При наличии внешнего однородного магнитного поля построены в явном виде три независимых класса волновых функций с соответствующими энергетическими спектрами. Отдельно исследуется безмассовое поле со спином 1; найдено четыре линейно независимых решения, два из которых калибровочные, а остальные два не содержат калибровочных степеней свободы. При этом также используется метод Федорова – Гронского.</p></abstract><trans-abstract xml:lang="en"><p>In this paper, the system of equations describing a spin 1 particle is studied in cylindric coordinates with the use of tetrad formalism and the matrix 10-dimension formalism of Duffin – Kemmer – Petieau. After separating the variables, we apply the method proposed by Fedorov – Gronskiy and based on the use of projective operators to resolve the system of 10 equations in the r variable. In the presence of an external uniform magnetic field, we construct in an explicit form three independent classes of wave functions with corresponding energy spectra. Separately the massless field with spin 1 is studied; there are found four linearly independent solutions, two of which are gauge ones, and other two do not contain gauge degrees of freedom. Meanwhile, the method of Fedorov – Gronskiy is also used.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>поле со спином 1</kwd><kwd>уравнение Даффина – Кеммера</kwd><kwd>цилиндрическая симметрия</kwd><kwd>метод проективных операторов</kwd><kwd>массивная и безмассовые частицы</kwd><kwd>калибровочные степени свободы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>spin 1 field</kwd><kwd>Duffin – Kemmer equation</kwd><kwd>cylindrical symmetry</kwd><kwd>method of projective operators</kwd><kwd>massive and massless particles</kwd><kwd>gauge degrees of freedom</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Fedorov F. I. Projective operators in the theory of elemrntary particles. 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