BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20250309T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20251102T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20250409T202934Z UID:0F346044-58DC-4497-A6CA-FBE508187078 DTSTART;TZID=America/New_York:20250409T110000 DTEND;TZID=America/New_York:20250409T123000 DESCRIPTION:Abstract: It is commonly known that the interplay of linear and nonlinear effects gives rise to solitons\, i.e.\, self-trapped localized structures\, in a wide range of physical settings\, including optics\, Bos e-Einstein condensates (BECs)\, hydrodynamics\, plasmas\, condensed-matter physics\, etc. Nowadays\, solitons are considered as an interdisciplinary class of modes\, which feature diverse internal structures.\nWhile most e xperimental realizations and theoretical models of solitons have been elab orated in one-dimensional (1D) settings\, a challenging issue is predictio n of stable solitons in 2D and 3D media. In particular\, multidimensional solitons may carry an intrinsic topological structure in the form of vorti city. In addition to the "simple" vortex solitons\, fascinating objects fe aturing complex structures\, such as hopfions\, i.e.\, vortex rings with i nternal twist\, have been predicted too.\n\nA fundamental problem is the p ropensity of multidimensional solitons to be unstable (naturally\, soliton s with a more sophisticated structure\, such as vortex solitons\, are more vulnerable to instabilities). Recently\, novel perspectives for the creat ion of stable 2D and 3D solitons were brought to the attention of research ers inoptics and BEC. The present talk aims to provide an overview of the main results and ongoing developments in this vast field. An essential con clusion is the benefit offered by the exchange of concepts between differe nt areas\, such as optics\, BEC\, and hydrodynamics.\n\nRecent review arti cles and a book on the subject of the talk:\n\nY. Kartashov\, G. Astrakhar chik\, B. Malomed\, and L. Torner\,\n\nFrontiers in multidimensional self- trapping of nonlinear fields and matter\,\n\nNature Reviews Physics 1\, 18 5-197 (2019)\n\nhttps://doi.org/10.1038/s42254-019-0025-7.\n\nB. A. Malome d\, (INVITED) Vortex solitons: Old results and new perspectives\,\n\nPhysi ca D 399\, 108-137 (2019)\n\nhttps://doi.org/10.1016/j.physd.2019.04.009\; \n\nfree access: https://authors.elsevier.com/a/1ZXATc2Eea3QG\n\nZ. Luo\, W. Pang\, B. Liu\, Y. Li\, and B. A. Malomed\, A new form of liquid matter :\n\nquantum droplets\, Front. Phys. 16\, 32501 (2021)\n\nhttps://link.spr inger.com/article/10.1007/s11467-020-1020-2.\n\nB. A. Malomed\, Multidimen sional dissipative solitons and solitary vortices\,\n\nChaos\, Solitons & Fractals 163\, 112526 (2022)\n\nhttps://doi.org/10.1016/j.chaos.2022.11252 6.\n\nB. A. Malomed\, Multidimensional Soliton Systems\, Advances in Physi cs X 9:1\,\n\n2301592 (2024).\n\nG. Li\, Z. Zhao\, B. Liu\, Y. Li\, Y. V. Kartashov\, and B. A. Malomed\, Can vortex\n\nquantum droplets be realized experimentally? Frontiers of Phys. 20\, 013401 (2025).\n\nB. A. Malomed\, Prediction and observation of topological modes in fractal nonlinear\n\no ptics\, Light: Science & Applications 14\, 29 (2025).\n\nB. A. Malomed\, M ultidimensional solitons (a book)\, AIP (American Institute of Physics)\n\ nPublishing\, Melville\, NY\, 2022.\n\nCo-sponsored by: Prof. Nicolas Ques ada\n\nSpeaker(s): Boris\n\nJ. Armand Bombardier J-2074\, Polytechnique Mo ntréal\, Montréal\, Quebec\, Canada\, H3T 1J4 LOCATION:J. Armand Bombardier J-2074\, Polytechnique Montréal\, Montréal\ , Quebec\, Canada\, H3T 1J4 ORGANIZER:Benjamin.crockett@ieee.org SEQUENCE:182 SUMMARY:Multidimensional Solitons URL;VALUE=URI:https://events.vtools.ieee.org/m/478558 X-ALT-DESC:Description: <br /><div><img src="https://events.vtools.ieee.org /vtools_ui/media/display/af827f4a-7daa-468c-ac0e-3c21f0d6ea3a"></div>\n<di v>&nbsp\;</div>\n<div><strong>Abstract: </strong>It is commonly known that the interplay of&nbsp\;&nbsp\;linear and nonlinear effects gives rise to solitons\, i.e.\, self-trapped localized structures\, in a wide range of p hysical settings\, including optics\, Bose-Einstein condensates (BECs)\, h ydrodynamics\, plasmas\, condensed-matter physics\, etc. Nowadays\, solito ns are considered as an interdisciplinary class of modes\, which feature d iverse internal structures.\n<p class="MsoNormal">While&nbsp\;most&nbsp\;e xperimental&nbsp\;realizations&nbsp\;and&nbsp\;theoretical&nbsp\;models&nb sp\;of solitons have been&nbsp\;elaborated&nbsp\;in one-dimensional&nbsp\; (1D) settings\,&nbsp\;&nbsp\;a&nbsp\;challenging&nbsp\;issue&nbsp\;is&nbsp \;prediction&nbsp\;of stable solitons in 2D and 3D media. In&nbsp\;particu lar\,&nbsp\;multidimensional&nbsp\;solitons&nbsp\;may&nbsp\;carry an&nbsp\ ;intrinsic&nbsp\;topological&nbsp\;structure in the&nbsp\;form&nbsp\;of&nb sp\;vorticity. In addition to the "simple" vortex solitons\,&nbsp\;fascina ting&nbsp\;objects&nbsp\;featuring&nbsp\;complex&nbsp\;structures\,&nbsp\; such&nbsp\;as&nbsp\;hopfions\, i.e.\, vortex rings&nbsp\;with&nbsp\;intern al&nbsp\;twist\, have been&nbsp\;predicted&nbsp\;too.</p>\n<p class="MsoNo rmal">A&nbsp\;fundamental&nbsp\;problem&nbsp\;is&nbsp\;the&nbsp\;propensit y&nbsp\;of&nbsp\;multidimensional&nbsp\;solitons to&nbsp\;be&nbsp\;unstabl e&nbsp\;(naturally\, solitons&nbsp\;with&nbsp\;a more&nbsp\;sophisticated& nbsp\;structure\,&nbsp\;such&nbsp\;as vortex solitons\, are more&nbsp\;vul nerable&nbsp\;to&nbsp\;instabilities).&nbsp\;Recently\,&nbsp\;novel&nbsp\; perspectives for the&nbsp\;creation&nbsp\;of stable 2D and 3D solitons&nbs p\;were&nbsp\;brought&nbsp\;to the attention of&nbsp\;researchers&nbsp\;in optics&nbsp\;and BEC. The&nbsp\;present&nbsp\;talk&nbsp\;aims&nbsp\;to&nbs p\;provide&nbsp\;an&nbsp\;overview&nbsp\;of the main&nbsp\;results&nbsp\;a nd&nbsp\;ongoing&nbsp\;developments&nbsp\;in&nbsp\;this&nbsp\;vast&nbsp\;f ield. An essential conclusion&nbsp\;is&nbsp\;the&nbsp\;benefit&nbsp\;offer ed&nbsp\;by the exchange of concepts&nbsp\;between&nbsp\;different&nbsp\;a reas\,&nbsp\;such&nbsp\;as&nbsp\;optics\, BEC\, and&nbsp\;hydrodynamics.</ p>\n<p class="MsoNormal">Recent&nbsp\;review&nbsp\;articles and a book on the&nbsp\;subject&nbsp\;of the talk:</p>\n<p class="MsoNormal">Y.&nbsp\;Ka rtashov\, G.&nbsp\;Astrakharchik\, B.&nbsp\;Malomed\, and L.&nbsp\;Torner\ ,</p>\n<p class="MsoNormal">Frontiers&nbsp\;in&nbsp\;multidimensional&nbsp \;self-trapping&nbsp\;of&nbsp\;nonlinear&nbsp\;fields&nbsp\;and&nbsp\;matt er\,</p>\n<p class="MsoNormal">Nature&nbsp\;Reviews&nbsp\;Physics&nbsp\;1\ , 185-197 (2019)</p>\n<p class="MsoNormal"><a href="https://doi.org/10.103 8/s42254-019-0025-7" target="_blank" rel="noopener noreferrer" data-safere directurl="https://www.google.com/url?q=https://doi.org/10.1038/s42254-019 -0025-7&amp\;source=gmail&amp\;ust=1743351430311000&amp\;usg=AOvVaw0Mxbd4Z pLyH3vInepOml4y">https://doi.org/10.1038/<wbr>s42254-019-0025-7</a>.&nbsp\ ;&nbsp\;</p>\n<p class="MsoNormal">B. A.&nbsp\;Malomed\, (INVITED) Vortex solitons: Old&nbsp\;results&nbsp\;and new perspectives\,</p>\n<p class="Ms oNormal">Physica&nbsp\;D 399\, 108-137 (2019)</p>\n<p class="MsoNormal"><a href="https://doi.org/10.1016/j.physd.2019.04.009" target="_blank" rel="n oopener noreferrer" data-saferedirecturl="https://www.google.com/url?q=htt ps://doi.org/10.1016/j.physd.2019.04.009&amp\;source=gmail&amp\;ust=174335 1430311000&amp\;usg=AOvVaw3t9o2KEzbGVBMCX27f1i9v">https://doi.org/10.1016/ j.<wbr>physd.2019.04.009</a>\;</p>\n<p class="MsoNormal">free&nbsp\;access :&nbsp\;<a href="https://authors.elsevier.com/a/1ZXATc2Eea3QG" target="_bl ank" rel="noopener noreferrer" data-saferedirecturl="https://www.google.co m/url?q=https://authors.elsevier.com/a/1ZXATc2Eea3QG&amp\;source=gmail&amp \;ust=1743351430311000&amp\;usg=AOvVaw12P3jh1XSuA8C_sMrJuF_B">https://auth ors.elsevier.com/<wbr>a/1ZXATc2Eea3QG</a></p>\n<p class="MsoNormal">Z. Luo \, W.&nbsp\;Pang\, B. Liu\, Y. Li\, and B. A.&nbsp\;Malomed\, A new&nbsp\; form&nbsp\;of&nbsp\;liquid&nbsp\;matter:</p>\n<p class="MsoNormal">quantum droplets\, Front. Phys. 16\, 32501 (2021)</p>\n<p class="MsoNormal"><a hr ef="https://link.springer.com/article/10.1007/s11467-020-1020-2" target="_ blank" rel="noopener noreferrer" data-saferedirecturl="https://www.google. com/url?q=https://link.springer.com/article/10.1007/s11467-020-1020-2&amp\ ;source=gmail&amp\;ust=1743351430311000&amp\;usg=AOvVaw0WUTjJ2X1fUqltfPFoN dBL">https://link.springer.com/<wbr>article/10.1007/s11467-020-<wbr>1020-2 </a>.</p>\n<p class="MsoNormal">B. A.&nbsp\;Malomed\,&nbsp\;Multidimension al&nbsp\;dissipative solitons and&nbsp\;solitary&nbsp\;vortices\,</p>\n<p class="MsoNormal">Chaos\, Solitons &amp\; Fractals 163\, 112526 (2022)</p> \n<p class="MsoNormal"><a href="https://doi.org/10.1016/j.chaos.2022.11252 6" target="_blank" rel="noopener noreferrer" data-saferedirecturl="https:/ /www.google.com/url?q=https://doi.org/10.1016/j.chaos.2022.112526&amp\;sou rce=gmail&amp\;ust=1743351430311000&amp\;usg=AOvVaw1pONEb1nWADEz3vyQHLtOA" >https://doi.org/10.1016/j.<wbr>chaos.2022.112526</a>.</p>\n<p class="MsoN ormal">B. A.&nbsp\;Malomed\,&nbsp\;Multidimensional&nbsp\;Soliton&nbsp\;Sy stems\,&nbsp\;Advances&nbsp\;in&nbsp\;Physics&nbsp\;X 9:1\,</p>\n<p class= "MsoNormal">2301592 (2024).</p>\n<p class="MsoNormal">G. Li\, Z. Zhao\, B. Liu\, Y. Li\, Y. V.&nbsp\;Kartashov\, and B. A.&nbsp\;Malomed\, Can vorte x</p>\n<p class="MsoNormal">quantum droplets be realized experimentally? F rontiers of Phys. 20\, 013401 (2025).</p>\n<p class="MsoNormal">B. A.&nbsp \;Malomed\,&nbsp\;Prediction&nbsp\;and observation of&nbsp\;topological&nb sp\;modes in fractal&nbsp\;nonlinear</p>\n<p class="MsoNormal">optics\, Li ght: Science &amp\; Applications 14\, 29 (2025).</p>\n<p class="MsoNormal" >B. A.&nbsp\;Malomed\,&nbsp\;Multidimensional&nbsp\;solitons (a&nbsp\;book )\, AIP (American Institute of&nbsp\;Physics)</p>\n<p class="MsoNormal">Pu blishing\, Melville\, NY\, 2022.</p>\n</div> END:VEVENT END:VCALENDAR