Experimental Quantum Electrodynamics

Experimental Quantum Electrodynamics - Featured

Title: Experimental Quantum Electrodynamics
When: Tuesday, December 19, 2023, 12:00
Place: Department of Theoretical Condensed Matter Physics, Faculty of Sciences, Module 5, Seminar Room (5th Floor)
Speaker: Denis Seletskly, Polytechnique Montréal, Montréal, Canada.

Traditional approaches to quantum optics are rooted in the reciprocal, frequency-momentum space. In this talk, I will discuss recent advances toward sub-cycle quantum optics, where, instead, quantum fields are accessed in a localized region of space-time [1-2]. Both regimes will be compared side-by-side to contrast the advantages of each approach, with a particular emphasis on quantum sensing proposals [3-5] in the mid-infrared frequency range. In the concluding part of the talk, I will summarize recent advances in producing few-cycle bright one- and two-mode squeezed vacuum states in a single few-cycle spatio-temporal mode with macroscopic photon occupation [6]. Such capabilities are poised to unlock a new era of (extreme) nonlinear quantum optics in the attosecond regime [7].


  1. C. Riek et al.; Science 350, 420-423 (2015)
  2. I-C. Benea-Chelmus et al.; Nature 568, 202-206 (2019)
  3. S. Virally, P. Cusson, DVS; Phys. Rev. Lett. 127, 270504 (2021)
  4. S. Gündoğdu et al; Laser Phot. Rev. 17, 2200706 (2023)
  5. S. Onoe, S. Virally, DVS; arXiv:2307.13088 (2023)
  6. P. Cusson, S. Virally, DVS; IRMMW-THz Conference, paper Th-PM2-5-7 (2023)
  7. 2023 Nobel Prize in Physics: Pierre Agostini, Ferenc Krausz and Anne L’Huillier. Experimental methods that generate attosecond pulses for studying electron dynamics in matter.
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