41st RQC Seminar
Dr. Carlos Sánchez Muñoz
(Department of Theoretical Condensed Matter Physics,Autonomous University of Madrid, Spain）
ハイブリッド（Zoom ・ 理研 和光事業所 本部棟2階 大会議室）
Dressing qubits with classical fields for quantum applications
The hybridization of energy levels with a coherent driving field, the AC Stark effect, is one of the staple phenomena in quantum optics, linked to well known effects such as electromagnetically induced transparency. However, the possibilities of the nonlinear phenomena that emerge from this hybridization in the context of cavity QED are far from being completely explored. Here, I discuss a series of works in which we exploit the interaction between cavities and qubits dressed by coherent fields for applications in quantum technologies, such as the generation of non-classical states of light and matter [1-3], the emission of quantum radiation in the THz, or the dissipative stabilization of entanglement between non-identical quantum emitters .
 Sánchez Muñoz, C. et al. Emitters of N-photon bundles. Nature Photonics 8, 550–555 (2014).
 Sánchez Muñoz, C., Laussy, F. P., Valle, E. del, Tejedor, C. and González-Tudela, A. Filtering multiphoton emission from state-of-the-art cavity quantum electrodynamics. Optica, OPTICA 5, 14–26 (2018).
 Sánchez Muñoz, C., Frisk Kockum, A., Miranowicz, A. and Nori, F. Simulating ultrastrong-coupling processes breaking parity conservation in Jaynes-Cummings systems. Phys. Rev. A 102, 033716 (2020).
 Vivas-Viaña, A. and Sánchez Muñoz, C. Two-photon resonance fluorescence of two interacting nonidentical quantum emitters. Phys. Rev. Research 3, 033136 (2021).