Quantum entanglement, fluctuations, and measurement of radiation in the time domain (A05)

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

This theoretical project investigates time-dependent quantum effects in the electromagnetic field. An important part of this phenomenology consists in fluctuations of the fields, both quantum and classical. Previous research has led to a theory of electro-optic sampling for a restricted class of quantum states, non-linear response functions, quantum measurements, and temporal correlations. In the second phase, we extend electro-optic sampling to characterize a much wider class of quantum states. We will also study another setting to probe fluctuations, consisting of an electromagnetic cavity coupled to a quantum system affected by fluctuations.

• 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. Guido Burkard