TRR 142 - Nonlinear quantum process tomography and photonics of microcavity polaritons (A04)
Overview
In this project, we set out to realize a complete description of nonlinear quantum processes involving microcavity polaritons. Such a description is given by a process matrix that maps every possible input state fed to the system to its corresponding output state. To construct this matrix, we will combine advanced spectroscopic techniques and theoretical modelling to realize nonlinear quantum process tomography – a technique known from quantum optics – and apply it to the specific challenges posed by semiconductor systems. In detail, we will fully characterize spontaneous polariton condensate formation, vortex formation, and the polariton optical parametric oscillator.
Key Facts
- Grant Number:
- 231447078
- Research profile area:
- Optoelektronik und Photonik
- Project type:
- Forschung
- Project duration:
- 04/2014 - 12/2025
- Funded by:
- Deutsche Forschungsgemeinschaft (DFG)
- Website:
-
Homepage
More Information
Publications
Entanglement between dependent degrees of freedom: Quasiparticle correlations
F. Barkhausen, L. Ares Santos, S. Schumacher, J. Sperling, Physical Review A 111 (2025).
PHOENIX – Paderborn highly optimized and energy efficient solver for two-dimensional nonlinear Schr?dinger equations with integrated extensions
J. Wingenbach, D. Bauch, X. Ma, R. Schade, C. Plessl, S. Schumacher, Computer Physics Communications 315 (2025).
Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates
T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, X. Ma, Nanophotonics 13 (2024) 509–518.
Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates
T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, X. Ma, Nanophotonics 13 (2024) 509–518.
Manipulating spectral topology and exceptional points by nonlinearity in non-Hermitian polariton systems
Show all publications
J. Wingenbach, S. Schumacher, X. Ma, Physical Review Research 6 (2024).