Are Maxwells’ equations intimately related to the quantum vacuum?

#Maxwell #Physics #Quantum #Vacuum #electrodynamics

Abstract: 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 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 and their anti-particles in the vacuum. We are using a phenomenological model 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.

G Leuchs, M Hawton and LL Sánchez-Soto, Physics 5, 179 (2023)

G Leuchs, SPG Mitteilungen 70, 34 (2023) 

Bio : Gerd Leuchs is Director Emeritus at the Max Planck Institute for the Science of Light in Erlangen and an adjunct professor within the physics department of the University of Ottawa.  After 15 years in academic research at the University of Cologne, the University of Munich and JILA in Boulder, Colorado, he worked at a Swiss optics company for five years before becoming a full professor at the University of Erlangen-Nürnberg. His scientific work includes quantum beats, photo-electron angular distributions in multiphoton ionization, quantum noise-reduced and entangled light beams and solitons in optical fibers and quantum communication protocols, focusing light beams and nanophotonics.

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 Foundation and Visiting Professor at the Australian National University, at the University of Adelaide and the Laboratoire Kastler Brossel of the Ecole Normale Supérieure. He is a member of the German Physical Society, the German Society for Applied Optics, the European Physical Society, and the German Academy of Sciences Leopoldina and a Fellow of the Institute of Physics, Optica and the American Association for the Advancement of Science. 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 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 Physical Society (DPG). He won an advanced grant from the European Research Council, 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 Germany and abroad.

• Start time: 07 Nov 2024 11:00 AM
• End time: 08 Nov 2024 12:00 PM
• All times are (UTC-05:00) Eastern Time (US & Canada)
• Add Event to Calendar
  iCal
  Google Calendar

• Local J-1035 Pavillon J. A. Bombardier, Polytechnique Montréal
• Montréal, Quebec
• Canada

---

• Contact Event Hosts

• Starts 01 November 2024 12:00 AM
• Ends 07 November 2024 11:00 AM
• All times are (UTC-05:00) Eastern Time (US & Canada)
• No Admission Charge

• 

Du café sera servi 15 minutes avant le séminaire et ensuite Pizza.