Środowiskowe Seminarium z Informacji i Technologii Kwantowych
sala 1.03, ul. Pasteura 5
2021-12-09 (11:15) 
Paweł Machnikowski (Politechnika Wrocławska)
Resonance fluorescence of a quantum system with modulated transition energy
The Seminar will take a HYBRID form. It will take place in room 1.03 but will be simmultaneously tranmitted via ZOOM under the following link: https://zoom.us/j/92894130767 (Passcode: R6Vx6E)
I will discuss the spectra of resonance fluorescence for a two-level system in which the transition energy varies in time in a deterministic or random way. A particular system that we studied both theoretically and experimentally is a semiconductor quantum dot interacting with the strain field of a surface acoustic wave. I will show how a modulation with one or two acoustic tones allows one to control the frequency bin to which the photons are scattered in the weak excitation regime. Next, I will discuss acoustic sidebands of the Mollow triplet in the strong excitation regime and show how the double dressing of quantum states leads to resonances and central line suppression under strong excitation. Finally, I will briefly report results on random modulation by a telegraph noise.
I will discuss the spectra of resonance fluorescence for a two-level system in which the transition energy varies in time in a deterministic or random way. A particular system that we studied both theoretically and experimentally is a semiconductor quantum dot interacting with the strain field of a surface acoustic wave. I will show how a modulation with one or two acoustic tones allows one to control the frequency bin to which the photons are scattered in the weak excitation regime. Next, I will discuss acoustic sidebands of the Mollow triplet in the strong excitation regime and show how the double dressing of quantum states leads to resonances and central line suppression under strong excitation. Finally, I will briefly report results on random modulation by a telegraph noise.