Andreas Knorr

Time-delayed quantum coherent Pyragas feedback control of photon squeezing in a degenerate parametric oscillator

2016 · Physical Review A

Quantum coherent feedback control is a measurement-free control method fully preserving quantum coherence. In this paper we show how time-delayed quantum coherent feedback can be used to control the degree of squeezing in the output …

Two-photon purification of quantum light emission via quantum feedback

2018 · arXiv (Cornell University)

A single two-level system acts as a single photon source under a $\pi$-pulse excitation. Increasing the pulse area such that the pulse induces a full Rabi-oscillation of the two-level system, a two-photon emission process becomes …