A5021196943- Quantum Information and Cryptography
- Mechanical and Optical Resonators
- Quantum optics and atomic interactions
- Quantum Mechanics and Applications
- Photonic and Optical Devices
- Neural Networks and Reservoir Computing
- Nonlinear Waves and Solitons
- Photonic Crystals and Applications
- Optical and Acousto-Optic Technologies
Paderborn University
2023-2024
In the SUPER scheme (Swing-UP of quantum EmitteR population), excitation a emitter is achieved with two off-resonant, red-detuned laser pulses. This allows generation high-quality single photons without need complex stray light suppression or careful spectral filtering. present work, we extend this promising method to emitters, specifically semiconductor dots, inside resonant optical cavity. A significant advantage identified in that it eliminates re-excitation by suppressing photon emission...
We theoretically investigate strategies for the deterministic creation of trains time-bin entangled photons using an individual quantum emitter described by a Λ-type electronic system. explicitly demonstrate theoretical generation linear cluster states with substantial numbers photonic qubits in full microscopic numerical simulations. The underlying scheme is based on manipulation ground state coherences through precise optical driving. One important finding that most easily accessible...
In the SUPER scheme (Swing-UP of quantum EmitteR population), excitation a emitter is achieved with two off-resonant, red-detuned laser pulses. This allows generation high-quality single photons without need complex stray light suppression or careful spectral filtering. present work, we extend this promising method to emitters, specifically semiconductor dots, inside resonant optical cavity. A significant advantage Super identified in that it eliminates re-excitation by suppressing photon...
We investigate strategies for the efficient deterministic creation of trains time-bin entangled photons using an individual quantum emitter described by a $\Lambda$-type electronic system. explicitly demonstrate generation high-quality linear cluster states substantial length in our full microscopic numerical simulations. The underlying scheme is based on manipulation ground state coherences through precise optical driving. One important finding that most easily accessible quality metrics,...
The time-dependent one-dimensional nonlinear Schr\"odinger equation (NLSE) is solved numerically by a hybrid pseudospectral-variational quantum algorithm that connects pseudospectral step for the Hamiltonian term with variational term. treated as an integrating factor forward and backward Fourier transformations, which are here carried out classically. This split allows us to avoid higher-order time integration schemes, apply first-order explicit stepping remaining NLSE in block, thus...