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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2020-11-2-145-152</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-437</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="en"><subject>MATHEMATICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАТЕМАТИКА</subject></subj-group></article-categories><title-group><article-title>Particle transport in a network of quantum harmonic oscillators</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Yusupov</surname><given-names>J. R.</given-names></name></name-alternatives><bio xml:lang="en"><p>17 Niyazov Str., 100095, Tashkent</p></bio><email xlink:type="simple">jambul.yusupov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Matyokubov</surname><given-names>Kh. Sh.</given-names></name></name-alternatives><bio xml:lang="en"><p>14 H. Olimjon Str., 220100, Urgench</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Sabirov</surname><given-names>K. K.</given-names></name></name-alternatives><bio xml:lang="en"><p>108 Amir Temur Str., 100200, Tashkent </p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Turin Polytechnic University in Tashkent</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-2"><institution>Urgench State University</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-3"><institution>Tashkent University of Information Technologies</institution><country>Uzbekistan</country></aff><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>30</day><month>07</month><year>2025</year></pub-date><volume>11</volume><issue>2</issue><elocation-id>145–152</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Yusupov J.R., Matyokubov K.S., Sabirov K.K., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Yusupov J.R., Matyokubov K.S., Sabirov K.K.</copyright-holder><copyright-holder xml:lang="en">Yusupov J.R., Matyokubov K.S., Sabirov K.K.</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://nanojournal.ifmo.ru/jour/article/view/437">https://nanojournal.ifmo.ru/jour/article/view/437</self-uri><abstract><p>In this paper, we address the problem of a particle dynamics in a network of quantum harmonic oscillators by solving the stationary Schrodinger¨ equation on metric graphs in the presence of harmonic oscillator potential with bond-dependent frequency. Particle transport is analyzed by considering wave packet dynamics in such a system modeled in terms of quantum graph.</p></abstract><kwd-group xml:lang="en"><kwd>quantum graph</kwd><kwd>harmonic oscillator</kwd><kwd>particle transport</kwd><kwd>wave packet dynamics</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">Pauling L. The Diamagnetic Anisotropy of Aromatic Molecules, J. Chem. Phys., 1936, 4, P. 673.</mixed-citation><mixed-citation xml:lang="en">Pauling L. The Diamagnetic Anisotropy of Aromatic Molecules, J. Chem. Phys., 1936, 4, P. 673.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ruedenberg K. and Scherr C.W. Free-Electron Network Model for Conjugated Systems. I. Theory, J. Chem. Phys., 1953, 21 P. 1565.</mixed-citation><mixed-citation xml:lang="en">Ruedenberg K. and Scherr C.W. Free-Electron Network Model for Conjugated Systems. I. Theory, J. Chem. Phys., 1953, 21 P. 1565.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Exner P. and Seba P. Free quantum motion on a branching graph. Rep. Math. Phys., 1989, 28(1) P. 26.</mixed-citation><mixed-citation xml:lang="en">Exner P. and Seba P. Free quantum motion on a branching graph. Rep. Math. Phys., 1989, 28(1) P. 26.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Kostrykin R. and Schrader R. Kirchhoff’s rule for quantum wires. J. Phys. A: Math. Gen., 1999, 32, P. 595.</mixed-citation><mixed-citation xml:lang="en">Kostrykin R. and Schrader R. Kirchhoff’s rule for quantum wires. J. Phys. A: Math. Gen., 1999, 32, P. 595.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Hul O., Bauch S., Pakonski P., Savytskyy N., Zyczkowski K. and Sirko L. Experimental simulation of quantum graphs by microwave networks, Phys. Rev. E, 2004, 69, P. 056205.</mixed-citation><mixed-citation xml:lang="en">Hul O., Bauch S., Pakonski P., Savytskyy N., Zyczkowski K. and Sirko L. Experimental simulation of quantum graphs by microwave networks, Phys. Rev. E, 2004, 69, P. 056205.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Kottos T. and Smilansky U. Periodic Orbit Theory and Spectral Statistics for Quantum Graphs. Ann.Phys., 1999, 274(1), P. 124.</mixed-citation><mixed-citation xml:lang="en">Kottos T. and Smilansky U. Periodic Orbit Theory and Spectral Statistics for Quantum Graphs. Ann.Phys., 1999, 274(1), P. 124.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Gnutzmann S. and Smilansky U. Quantum graphs: Applications to quantum chaos and universal spectral statistics. Adv.Phys., 2006, 55(5-6) P. 527–625.</mixed-citation><mixed-citation xml:lang="en">Gnutzmann S. and Smilansky U. Quantum graphs: Applications to quantum chaos and universal spectral statistics. Adv.Phys., 2006, 55(5-6) P. 527–625.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Gnutzmann S., Keating J.P. and Piotet F. Eigenfunction statistics on quantum graphs. Ann.Phys., 2010, 325(12) P. 2595–2640.</mixed-citation><mixed-citation xml:lang="en">Gnutzmann S., Keating J.P. and Piotet F. Eigenfunction statistics on quantum graphs. Ann.Phys., 2010, 325(12) P. 2595–2640.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Goldman N. and Gaspard P. Quantum graphs and the integer quantum Hall effect, Phys. Rev. B, 2008, 77, P. 024302.</mixed-citation><mixed-citation xml:lang="en">Goldman N. and Gaspard P. Quantum graphs and the integer quantum Hall effect, Phys. Rev. B, 2008, 77, P. 024302.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Russo A., Barnes E., Economou S.E. Photonic graph state generation from quantum dots and color centers for quantum communications, Phys. Rev. B, 2018, 98, P. 085303.</mixed-citation><mixed-citation xml:lang="en">Russo A., Barnes E., Economou S.E. Photonic graph state generation from quantum dots and color centers for quantum communications, Phys. Rev. B, 2018, 98, P. 085303.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Bolte J. and Harrison J. The spin contribution to the form factor of quantum graphs. J. Phys. A: Math. Gen., 2003, 36, P. L433.</mixed-citation><mixed-citation xml:lang="en">Bolte J. and Harrison J. The spin contribution to the form factor of quantum graphs. J. Phys. A: Math. Gen., 2003, 36, P. L433.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Sabirov K., Yusupov J., Jumanazarov D., Matrasulov D. Bogoliubov de Gennes equation on metric graphs. Phys. Lett. A, 2018, 382, P. 2856.</mixed-citation><mixed-citation xml:lang="en">Sabirov K., Yusupov J., Jumanazarov D., Matrasulov D. Bogoliubov de Gennes equation on metric graphs. Phys. Lett. A, 2018, 382, P. 2856.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Giacomelli G., Lepri S., Trono C. Optical networks as complex lasers, Phys. Rev. A, 2019, 99, P. 023841.</mixed-citation><mixed-citation xml:lang="en">Giacomelli G., Lepri S., Trono C. Optical networks as complex lasers, Phys. Rev. A, 2019, 99, P. 023841.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Yusupov J.R., Sabirov K.K., Ehrhardt M. and Matrasulov D.U. Transparent quantum graphs. Phys. Lett. A, 2019, 383, P. 2382.</mixed-citation><mixed-citation xml:lang="en">Yusupov J.R., Sabirov K.K., Ehrhardt M. and Matrasulov D.U. Transparent quantum graphs. Phys. Lett. A, 2019, 383, P. 2382.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Aripov M.M., Sabirov K.K., Yusupov J.R. Transparent vertex boundary conditions for quantum graphs: simplified approach. Nanosystems: physics, chemistry, mathematics, 2019, 10(5), P. 501–602.</mixed-citation><mixed-citation xml:lang="en">Aripov M.M., Sabirov K.K., Yusupov J.R. Transparent vertex boundary conditions for quantum graphs: simplified approach. Nanosystems: physics, chemistry, mathematics, 2019, 10(5), P. 501–602.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Matrasulov D.U., Sabirov K.K. and Yusupov J.R. PT-symmetric quantum graphs. J. Phys. A: Math. Gen., 2019, 52, P. 155302.</mixed-citation><mixed-citation xml:lang="en">Matrasulov D.U., Sabirov K.K. and Yusupov J.R. PT-symmetric quantum graphs. J. Phys. A: Math. Gen., 2019, 52, P. 155302.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Yusupov J., Dolgushev M., Blumen A. and Mulken O. Directed transport in quantum star graphs.¨ Quantum Inf Process, 2016, 15, P. 1765.</mixed-citation><mixed-citation xml:lang="en">Yusupov J., Dolgushev M., Blumen A. and Mulken O. Directed transport in quantum star graphs.¨ Quantum Inf Process, 2016, 15, P. 1765.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Yusupov J. Tunable wave packet transport in branched periodic lattices with time-dependent external field. Nanosystems: physics, chemistry, mathematics, 2017, 8(1), P. 42–47.</mixed-citation><mixed-citation xml:lang="en">Yusupov J. Tunable wave packet transport in branched periodic lattices with time-dependent external field. Nanosystems: physics, chemistry, mathematics, 2017, 8(1), P. 42–47.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Naimark K. and Solomyak M. Eigenvalue estimates for the weighted Laplacian on metric trees. Proc. London Math. Soc., 2000, 80, P. 690.</mixed-citation><mixed-citation xml:lang="en">Naimark K. and Solomyak M. Eigenvalue estimates for the weighted Laplacian on metric trees. Proc. London Math. Soc., 2000, 80, P. 690.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Keating J.P. Fluctuation statistics for quantum star graphs. Quantum graphs and their applications. Contemp. Math., 2006, 415, P. 191–200.</mixed-citation><mixed-citation xml:lang="en">Keating J.P. Fluctuation statistics for quantum star graphs. Quantum graphs and their applications. Contemp. Math., 2006, 415, P. 191–200.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Harrison J.M., Smilansky U. and Winn B. Quantum graphs where back-scattering is prohibited. J. Phys. A: Math. Gen., 2007, 40, P. 14181.</mixed-citation><mixed-citation xml:lang="en">Harrison J.M., Smilansky U. and Winn B. Quantum graphs where back-scattering is prohibited. J. Phys. A: Math. Gen., 2007, 40, P. 14181.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Exner P. and Lipovsky J. On the absence of absolutely continuous spectra for Schr´ odinger operators on radial tree graphs.¨ J. Math. Phys., 2010, 51, P. 122107.</mixed-citation><mixed-citation xml:lang="en">Exner P. and Lipovsky J. On the absence of absolutely continuous spectra for Schr´ odinger operators on radial tree graphs.¨ J. Math. Phys., 2010, 51, P. 122107.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Berkolaiko G., Kuchment P. Introduction to Quantum Graphs, Mathematical Surveys and Monographs, AMS, 2013.</mixed-citation><mixed-citation xml:lang="en">Berkolaiko G., Kuchment P. Introduction to Quantum Graphs, Mathematical Surveys and Monographs, AMS, 2013.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Mugnolo D. Semigroup Methods for Evolution Equations on Networks. Springer-Verlag, Berlin, 2014.</mixed-citation><mixed-citation xml:lang="en">Mugnolo D. Semigroup Methods for Evolution Equations on Networks. Springer-Verlag, Berlin, 2014.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Kurasov P., Ogik R. and Rauf A. On reflectionless equi-transmitting matrices. Opuscula Math., 2014, 34, P. 483.</mixed-citation><mixed-citation xml:lang="en">Kurasov P., Ogik R. and Rauf A. On reflectionless equi-transmitting matrices. Opuscula Math., 2014, 34, P. 483.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">P. Exner and H. Kovarik, Quantum waveguides. Springer, 2015.</mixed-citation><mixed-citation xml:lang="en">P. Exner and H. Kovarik, Quantum waveguides. Springer, 2015.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Joly P., Kachanovska M. and Semin A. Wave propagation in fractal trees. Mathematical and Numerical Issues. hal-01801394, 2018.</mixed-citation><mixed-citation xml:lang="en">Joly P., Kachanovska M. and Semin A. Wave propagation in fractal trees. Mathematical and Numerical Issues. hal-01801394, 2018.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Yusupov J.R., Sabirov K.K., Ehrhardt M. and Matrasulov D.U. Transparent nonlinear networks. Phys. Rev. E, 2019, 100, P. 032204.</mixed-citation><mixed-citation xml:lang="en">Yusupov J.R., Sabirov K.K., Ehrhardt M. and Matrasulov D.U. Transparent nonlinear networks. Phys. Rev. E, 2019, 100, P. 032204.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Aquino N. The isotropic bounded oscillators. J. Phys. A: Math. Gen., 1997, 30(7) P. 2403.</mixed-citation><mixed-citation xml:lang="en">Aquino N. The isotropic bounded oscillators. J. Phys. A: Math. Gen., 1997, 30(7) P. 2403.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Stevanovic L. and Sen K.D. Eigenspectrum properties of the confined 3D harmonic oscillator.´ J. Phys. B: At.Mol., 2008, 41 P. 225002.</mixed-citation><mixed-citation xml:lang="en">Stevanovic L. and Sen K.D. Eigenspectrum properties of the confined 3D harmonic oscillator.´ J. Phys. B: At.Mol., 2008, 41 P. 225002.</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Amore P. and Fernandez F.M. One-dimensional oscillator in a box.´ Eur. J. Phys., 2010, 31, P. 69.</mixed-citation><mixed-citation xml:lang="en">Amore P. and Fernandez F.M. One-dimensional oscillator in a box.´ Eur. J. Phys., 2010, 31, P. 69.</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Rice M.J., Gartstein Yu.N. Excitons and Interband Excitations in Conducting Polymers Based on Phenylene. Phys. Rev. Lett., 1994, 73, P. 2504.</mixed-citation><mixed-citation xml:lang="en">Rice M.J., Gartstein Yu.N. Excitons and Interband Excitations in Conducting Polymers Based on Phenylene. Phys. Rev. Lett., 1994, 73, P. 2504.</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Brazovskii S., Kirova N., Bishop A.R. Theory of electronic states and excitations in PPV. Opt. Mat., 1998, 9 P. 465–471.</mixed-citation><mixed-citation xml:lang="en">Brazovskii S., Kirova N., Bishop A.R. Theory of electronic states and excitations in PPV. Opt. Mat., 1998, 9 P. 465–471.</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Moses D., Wang J., Heeger A.J., Kirova N., Brazovski S. Electric field induced ionization of the exciton in poly(phenylene vinylene). Synth. Met., 2001, 119, P. 503.</mixed-citation><mixed-citation xml:lang="en">Moses D., Wang J., Heeger A.J., Kirova N., Brazovski S. Electric field induced ionization of the exciton in poly(phenylene vinylene). Synth. Met., 2001, 119, P. 503.</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Kirova N., Brazovskii S. Optical and electrooptical absorption in conducting polymers. Thin Solid Films, 2002, 403, P. 419.</mixed-citation><mixed-citation xml:lang="en">Kirova N., Brazovskii S. Optical and electrooptical absorption in conducting polymers. Thin Solid Films, 2002, 403, P. 419.</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Kirova N., Brazovskii S. Conjugated polymers at the verge of strongly correlated systems and 1d semiconductors, Synth. Met., 2004, 141, P. 139.</mixed-citation><mixed-citation xml:lang="en">Kirova N., Brazovskii S. Conjugated polymers at the verge of strongly correlated systems and 1d semiconductors, Synth. Met., 2004, 141, P. 139.</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Kirova N., Brazovskii S. Electronic interactions and excitons in conducting polymers, Current Appl. Phys., 2004, 4 P. 473–478.</mixed-citation><mixed-citation xml:lang="en">Kirova N., Brazovskii S. Electronic interactions and excitons in conducting polymers, Current Appl. Phys., 2004, 4 P. 473–478.</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Kobrak M.N., Bittner E.R. A dynamic model for exciton self-trapping in conjugated polymers. I. Theory, J. Chem. Phys., 2000, 112 P. 5399.</mixed-citation><mixed-citation xml:lang="en">Kobrak M.N., Bittner E.R. A dynamic model for exciton self-trapping in conjugated polymers. I. Theory, J. Chem. Phys., 2000, 112 P. 5399.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
