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:20241103T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20241109T010254Z UID:63AA38AE-F1B9-4AF7-9613-2EB855580FAC DTSTART;TZID=America/New_York:20241107T110000 DTEND;TZID=America/New_York:20241108T120000 DESCRIPTION:Abstract: In the talk I will try to convince you that the answe r is yes. Maxwell postulated that there can be a current of electric charg es in the vacuum. This was needed to turn the equations of electrostatics into a consistent set of quations forming the basis of electrodynamics. We argue that Maxwell’s current are moving virtual elementary particles an d their anti-particles in the vacuum. We are using a phenomenological mode l treating the vacuum as a dielectric. We find this reproduces fairly well the coefficients and . We also formu­lated the story in the language of quantum field theory.\n\nG Leuchs\, M Hawton and LL Sánchez-Soto\, Physi cs 5\, 179 (2023)\n\nG Leuchs\, SPG Mitteilungen 70\, 34 (2023)\n\nBio : G erd Leuchs is Director Emeritus at the Max Planck Institute for the Scienc e of Light in Erlangen and an adjunct professor within the physics departm ent of the University of Ottawa. After 15 years in academic research at th e University of Cologne\, the University of Munich and JILA in Boulder\, C olorado\, he worked at a Swiss optics company for five years before becomi ng a full professor at the University of Erlangen-Nürnberg. His scientifi c work includes quantum beats\, photo-electron angular distributions in mu ltiphoton ionization\, quantum noise-reduced and entangled light beams and solitons in optical fibers and quantum communication protocols\, focusing light beams and nanophotonics.\n\nFor five years\, Gerd Leuchs led the Ge rman gravitational wave detection group (1985-1989). He has been a Visitin g Fellow of JILA\, Feodor-Lynen Fellow of the Alexander von Humboldt Found ation\, Heisenberg Fellow of the German Science Foundation and Visiting Pr ofessor at the Australian National University\, at the University of Adela ide and the Laboratoire Kastler Brossel of the Ecole Normale Supérieure. He is a member of the German Physical Society\, the German Society for App lied Optics\, the European Physical Society\, and the German Academy of Sc iences Leopoldina and a Fellow of the Institute of Physics\, Optica and th e American Association for the Advancement of Science. He is a foreign mem ber of the Russian Academy of Sciences. He holds honorary degrees from the Danish Technical University and Saint Petersburg State University. Over t he years\, he has served on several OSA committees. In 2005\, he received the Quantum Electronics Prize from the European Physical Society\, and in 2018\, the Herbert Walther Prize jointly awarded by OSA and the German Phy sical Society (DPG). He won an advanced grant from the European Research C ouncil\, a megagrant from Russia\, and a Julius-von-Haast Fellowship award from the Royal Society of New Zealand. With his research\, Gerd Leuchs is contributing to the field of quantum technology. He is member of a number of advisory boards for quantum technology application and innovation in G ermany and abroad.\n\nLocal J-1035 Pavillon J. A. Bombardier\, Polytechniq ue Montréal\, Montréal\, Quebec\, Canada LOCATION:Local J-1035 Pavillon J. A. Bombardier\, Polytechnique Montréal\, Montréal\, Quebec\, Canada ORGANIZER:Benjamin.crockett@ieee.org SEQUENCE:16 SUMMARY:Are Maxwells’ equations intimately related to the quantum vacuum? URL;VALUE=URI:https://events.vtools.ieee.org/m/443703 X-ALT-DESC:Description: <br /><p><img src="https://events.vtools.ieee.org/v tools_ui/media/display/e12f6830-7d29-45a2-802f-d42e8b45947d" width="947" h eight="533"></p>\n<p><strong>Abstract: </strong><span lang="EN-US">In the talk I will try to convince you that the answer is yes. Maxwell postulated that there can be a current of electric charges in the vacuum. This was n eeded to turn the equations of electrostatics into a consistent set of qua tions forming the basis of electrodynamics. We argue that Maxwell&rsquo\;s current are moving virtual elementary particles and their anti-particles in the vacuum. We are using a phenomenological model treating the vacuum a s a dielectric. We find this reproduces fairly well the coefficients <img src="https://events.vtools.ieee.org/vtools_ui/media/display/fe9fd374-2711- 4568-bfa7-aaf63780c8da"></span><span lang="EN-US"> and <img src="https://e vents.vtools.ieee.org/vtools_ui/media/display/11300ad7-d5b5-40ea-bb6e-9e7d 8f4640d7"></span><span lang="EN-US">. We also formu&shy\;lated the story i n the language of quantum field theory.</span></p>\n<p class="x_MsoNormal" ><span lang="EN-US">G Leuchs\, M Hawton and LL S&aacute\;nchez-Soto\, Phys ics 5\, 179 (2023)</span></p>\n<p class="x_MsoNormal"><span lang="EN-US">G Leuchs\, SPG Mitteilungen 70\, 34 (2023)</span>&nbsp\;</p>\n<p class="x_M soNormal">&nbsp\;</p>\n<p class="x_MsoNormal"><strong>Bio&nbsp\;</strong>: <strong> </strong>Gerd Leuchs is Director Emeritus at the Max Planck Insti tute for the Science of Light in Erlangen and an adjunct professor within the physics department of the University of Ottawa.&nbsp\; After 15 years in academic research at the University of Cologne\, the University of Muni ch and JILA in Boulder\, Colorado\, he worked at a Swiss optics company fo r five years before becoming a full professor at the University of Erlange n-N&uuml\;rnberg. His scientific work includes quantum beats\, photo-elect ron angular distributions in multiphoton ionization\, quantum noise-reduce d and entangled light beams and solitons in optical fibers and quantum com munication protocols\, focusing light beams and nanophotonics.</p>\n<p cla ss="x_MsoNormal">&nbsp\;</p>\n<p class="x_MsoNormal">For five years\, Gerd Leuchs led the German gravitational wave detection group (1985-1989). He has been a Visiting Fellow of JILA\, Feodor-Lynen Fellow of the Alexander von Humboldt Foundation\, Heisenberg Fellow of the German Science Foundati on and Visiting Professor at the Australian National University\, at the U niversity of Adelaide and the Laboratoire Kastler Brossel of the Ecole Nor male Sup&eacute\;rieure. He is a member of the German Physical Society\, t he German Society for Applied Optics\, the European Physical Society\, and the German Academy of Sciences Leopoldina and a Fellow of the Institute o f Physics\, Optica and the American Association for the Advancement of Sci ence. He is a foreign member of the Russian Academy of Sciences. He holds honorary degrees from the Danish Technical University and Saint Petersburg State University. Over the years\, he has served on several OSA committee s. In 2005\, he received the Quantum Electronics Prize from the European P hysical Society\, and in 2018\, the Herbert Walther Prize jointly awarded by OSA and the German Physical Society (DPG). He won an advanced grant fro m the European Research Council\, a megagrant from Russia\, and a Julius-v on-Haast Fellowship award from the Royal Society of New Zealand. With his research\, Gerd Leuchs is contributing to the field of quantum technology. He is member of a number of advisory boards for quantum technology applic ation and innovation in Germany and abroad.</p> END:VEVENT END:VCALENDAR