Time-domain quantum statistics of nonclassical mid-infrared electric fields (A06)

• Subject Area: Experimental Condensed Matter Physics ; Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 425217212

Establishing the new field of time-domain quantum physics is at the heart of project A06. In the next funding period, mid-infrared squeezed vacua will be generated by spontaneous parametric downconversion. The corresponding patterns of quantum noise will be analyzed directly in the time domain by electro-optic sampling. In a new setup with ultrahigh stability and enhanced bandwidth, the role of back action and curved spacetime in this methodology will be studied. Finally, we want to establish a conceptionally new route for generating synchronal pulses of quantum and thermal light via resonant and non-resonant third-order optical nonlinearities.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1432: Fluctuations and Nonlinearities in Classical and Quantum Matter beyond Equilibrium
• Applicant Institution: Universität Konstanz
• Project Head: Professor Dr. Alfred Leitenstorfer