Register now After registration you will be able to apply for this opportunity online.
This opportunity is not published. No applications will be accepted.
Design of nonlinear waveguides for efficient and pure single photon generation
Periodically poled lithium niobate waveguides are an excellent source of photon pairs via spontaneous parametric down-conversion (SPDC) with applications in quantum computing, communication and sensing. For scalable quantum computing, one photon is detected to herald the presence of the partner photon. It is critical the quantum state of the heralded photon is pure without the need for spectral filtering. Standard periodically poled waveguides prepare photons that are highly correlated and are unsuitable for quantum computing. This project will develop Python software for simulating lithium niobate waveguides to predict the spectral properties of the generated photons, including optimizers and graphical interfaces. The goal is to design lithium niobate waveguides that can prepare pure heralded photons based on SPDC. This project will take place in the Optical Nanomaterial Group at ETH Zurich.
Keywords: Python; Spontaneous parametric down conversion; Quantum computing; nonlinear optics
Methods:
• Build on existing Python software for SPDC simulation
• Develop a graphical user interface to plot photon spectra and modify parameters
• Implement optimization protocols to maximize the photon purity
Knowledge of Python including data management, optimization and user interfaces will be beneficial.
Methods:
• Build on existing Python software for SPDC simulation
• Develop a graphical user interface to plot photon spectra and modify parameters
• Implement optimization protocols to maximize the photon purity
Knowledge of Python including data management, optimization and user interfaces will be beneficial.
Develop software package for simulating quasi-phase-matching, nonlinear frequency conversion and spectral properties of SPDC.
Develop software package for simulating quasi-phase-matching, nonlinear frequency conversion and spectral properties of SPDC.
Robert Chapman, HPT H4.1 ETH Zurich, rchapman@phys.ethz.ch
Robert Chapman, HPT H4.1 ETH Zurich, rchapman@phys.ethz.ch