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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Discrete and Continuous Models and Applied Computational Science</journal-id><journal-title-group><journal-title xml:lang="en">Discrete and Continuous Models and Applied Computational Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Discrete and Continuous Models and Applied Computational Science</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-4670</issn><issn publication-format="electronic">2658-7149</issn><publisher><publisher-name xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">20224</article-id><article-id pub-id-type="doi">10.22363/2312-9735-2018-26-4-343-356</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Modeling and Simulation</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Математическое моделирование</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">MAPLE program for modelling hydrogen-like atoms in quantum mechanics with non-negative distribution function</article-title><trans-title-group xml:lang="ru"><trans-title>MAPLE программа для моделирования водородоподобных атомов в квантовой механике с неотрицательной функцией распределения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zorin</surname><given-names>Alexander V</given-names></name><name xml:lang="ru"><surname>Зорин</surname><given-names>Александр Валерьевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Associate Professor, Candidate of Sciences in Physics and Mathematics, Associate Professor of Peoples’ Friendship University of Russia (RUDN University)</p></bio><bio xml:lang="ru"><p>доцент, кандидат физико-математических наук, доцент РУДН</p></bio><email>zorin@mx.rudn.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tretyakov</surname><given-names>Nikolay P</given-names></name><name xml:lang="ru"><surname>Третьяков</surname><given-names>Николай Павлович</given-names></name></name-alternatives><bio xml:lang="en"><p>Associate Professor, Candidate of Sciences in Physics and Mathematics, Associate Professor of Department of Mathematics and Information Technologies of Russian State Social University</p></bio><bio xml:lang="ru"><p>доцент, кандидат физико-математических наук, доцент кафедры математики и информатики РГСУ</p></bio><email>trn11@rambler.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia (RUDN University)</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">The Russian Presidential Academy of National Economy and Public Administration</institution></aff><aff><institution xml:lang="ru">Российская академия народного хозяйства и государственной службы при Президенте Российской федерации</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Russian State Social University</institution></aff><aff><institution xml:lang="ru">Российский государственный социальный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2018</year></pub-date><volume>26</volume><issue>4</issue><issue-title xml:lang="en">VOL 26, NO4 (2018)</issue-title><issue-title xml:lang="ru">ТОМ 26, №4 (2018)</issue-title><fpage>343</fpage><lpage>356</lpage><history><date date-type="received" iso-8601-date="2018-12-21"><day>21</day><month>12</month><year>2018</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Zorin A.V., Tretyakov N.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Зорин А.В., Третьяков Н.П.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Zorin A.V., Tretyakov N.P.</copyright-holder><copyright-holder xml:lang="ru">Зорин А.В., Третьяков Н.П.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/miph/article/view/20224">https://journals.rudn.ru/miph/article/view/20224</self-uri><abstract xml:lang="en"><p>The program is proposed for a realization of the symbolic algorithm based on the quantum mechanics with non-negative probability distribution function (QDF) and for calculations of energy levels for hydrogen-like atoms. The program is written up in the language MAPLE. In the framework of the algorithm an original Maple package for calculations of necessary functions, such as hydrogen wave functions, Sturmian functions and their Fourier-transforms, Clebsch-Gordan coefficients, etc. is proposed. Operators of observables are calculated on the basis of the QDF quantization rule. According to the Ritz method, eigenvalues of Ritz matrices represent spectral values of the quantity under investigation, i.e. energy. As an example, energy levels of hydrogen-like atoms are calculated and compared with experimental data retrieved from the NIST Atomic Spectra Database Levels Data. It turns out that this theory seems to be equivalent to the traditional quantum mechanics in regard to predictions of experimental values. However, the existence of a phase-space probabilistic quantum theory may be an important advance towards the explanation and interpretation of quantum mechanics.</p></abstract><trans-abstract xml:lang="ru"><p>Предложена программа для реализации алгоритма аналитических вычислений, основанного на квантовой механике с неотрицательной функцией распределения вероятностей и для расчётов уровней энергии для водородоподобных атомов. Программа написана на языке MAPLE. В рамках алгоритма осуществляются вычисления необходимых функций, таких как волновые функции атома водорода, штурмовские функции и их фурье-преобразования, коэффициенты Клебша-Гордана и т. д. Операторы наблюдаемых вычисляются на основе правила квантования квантовой механики с неотрицательной функцией распределения. Согласно методу Ритца, собственные значения матриц Ритца представляют собой спектральные значения исследуемой величины, т. е. энергии. В качестве примера вычисляются энергетические уровни водородоподобных атомов и сравниваются с экспериментальными значениями, полученными из данных уровней базы данных NIST Atomic Spectra. Используемая теория, по-видимому, эквивалентна традиционной квантовой механике в отношении предсказаний экспериментальных значений. Однако существование вероятностной квантовой теории фазового пространства может быть важным шагом вперёд к объяснению и интерпретации квантовой механики.</p></trans-abstract><kwd-group xml:lang="en"><kwd>quantum mechanics</kwd><kwd>transition probability</kwd><kwd>computer algebra</kwd><kwd>non-negative quantum distribution function</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>квантовая механика</kwd><kwd>вероятность перехода</kwd><kwd>компьютерная алгебра</kwd><kwd>неотрицательная квантовая функция распределения</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">W. Eissner, H. Nussbaumer, Resonances in Cross Sections for Excitation of Forbidden Lines in O2+, Journal of Physics B: Atomic, Molecular and Optical Physics 2 (3) (1969) 1028-1043. doi:10.1088/0022-3700/2/3/305.</mixed-citation><mixed-citation xml:lang="ru">Eissner W., Nussbaumer H. 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