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• 20 janvier
  [Institut Quantique] Séminaire IQ – Marco Scigliuzzo
  20 janvier

  [Institut Quantique] Séminaire IQ – Marco Scigliuzzo

  Lieu : Description : Lieu/Location : Auditorium de l'IQLanguage : EnglishMarco ScigliuzzoPostdoc at EPFLLab of Tobias Kippenberg (K-lab) Join the Microsoft Teams Meeting / Rejoignez la réunion Microsoft TeamsTitre/TitleExotic Multimode Quantum Systems: Interactions of Light, Sound, and MatterRésumé/AbstractThe most intriguing classical and non-classical phenomena arise from the interplay of many degrees of freedom. Aiming at the description of such phenomena, a complete understanding and control of light-matter and sound-matter interactions in multimode quantum systems is a fundamental goal of quantum science and technology.In this talk, I will provide an overview of the state of the art in quantum optics and acoustics realized with multimode superconducting circuits, focusing on current challenges and recent breakthroughs. I will discuss how collective behaviours in these systems can lead to counterintuitive states, such as an optomechanical system in which a collective mode of thermally populated oscillators reaches its quantum ground state [1].Additionally, I will introduce the concept of dressed qubit excitations (atom-photon bound state) [2], explaining its implementation in high-impedance microwave resonators [3] and our effort to realize it in a mechanical oscillator array. Finally, I will describe how parametric processes can be used in long metamaterial chains to achieve quantum-limited amplification. Such examples show how a clear control of light, sound and matter interaction [4] is fundamental for advancing quantum technologies.References:[1] Chenizadeh*, MS*, et al.  Science (2024)[2] MS et al. PRX (2022)[3] Jouanny et al. arXiv:2403.18150 (2024)[4] Kono et al. Nature Communications (2024)

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• 21 janvier
  [Institut Quantique] InfoQ – Groupes
  21 janvier

  [Institut Quantique] InfoQ – Groupes

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• 21 janvier
  [Institut Quantique] InfoQ – Groupes Kourtis et Royer
  21 janvier

  [Institut Quantique] InfoQ – Groupes Kourtis et Royer

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