Sublinear scaling in non-Markovian open quantum systems simulations

M Cygorek, J Keeling, BW Lovett, EM Gauger - Physical Review X, 2024 - APS
While several numerical techniques are available for predicting the dynamics of non-
Markovian open quantum systems, most struggle with simulations for very long memory and …

Dressed-state analysis of two-color excitation schemes

TK Bracht, T Seidelmann, Y Karli, F Kappe, V Remesh… - Physical Review B, 2023 - APS
To coherently control a few-level quantum emitter, typically pulses with an energy resonant
to the transition energy are applied, making use of the Rabi mechanism, while a single off …

Controlling the photon number coherence of solid-state quantum light sources for quantum cryptography

Y Karli, DA Vajner, F Kappe, PCA Hagen… - npj Quantum …, 2024 - nature.com
Quantum communication networks rely on quantum cryptographic protocols including
quantum key distribution (QKD) based on single photons. A critical element regarding the …

Chirped Pulses Meet Quantum Dots: Innovations, Challenges, and Future Perspectives

F Kappe, Y Karli, G Wilbur, RG Krämer… - Advanced Quantum …, 2024 - Wiley Online Library
Shaped laser pulses have been remarkably effective in investigating various aspects of light–
matter interactions spanning a broad range of research. Chirped laser pulses exhibiting a …

Robust parallel laser driving of quantum dots for multiplexing of quantum light sources

A Ramachandran, GR Wilbur, R Mathew, A Mason… - Scientific Reports, 2024 - nature.com
Deterministic sources of quantum light (ie single photons or pairs of entangled photons) are
required for a whole host of applications in quantum technology, including quantum …

[HTML][HTML] Compact chirped fiber Bragg gratings for single-photon generation from quantum dots

V Remesh, RG Krämer, R Schwarz, F Kappe, Y Karli… - APL Photonics, 2023 - pubs.aip.org
A scalable source of single photons is a key constituent of an efficient quantum photonic
architecture. To realize this, it is beneficial to have an ensemble of quantum emitters that can …

Robust single-photon generation for quantum information enabled by stimulated adiabatic rapid passage

Y Karli, R Schwarz, F Kappe, DA Vajner… - Applied Physics …, 2024 - pubs.aip.org
The generation of single photons using solid-state quantum emitters is pivotal for advancing
photonic quantum technologies, particularly in quantum communication. As the field …

Single‐Photon Sources for Multi‐Photon Applications

S Frick, R Keil, V Remesh… - … Technologies: Science and …, 2023 - Wiley Online Library
Much of the recent development of single‐photon sources is driven by the desire to apply
them to protocols and technologies that use the interference of two or more photons, such as …

Keeping the photon in the dark: Enabling full quantum dot control by chirped pulses and magnetic fields

F Kappe, R Schwarz, Y Karli, T Bracht, VM Axt… - arXiv preprint arXiv …, 2024 - arxiv.org
Because dark excitons in quantum dots are not directly optically accessible, so far they have
not played a significant role in using quantum dots for photon generation. They possess …

Chirped pulse excitation scheme for the efficient generation of frequency multiplexed photons

GR Wilbur, A Clarke, A Ramachandran… - CLEO: Applications and …, 2024 - opg.optica.org
State-inversion of multiple quantum dot (QD) single photon emitters is demonstrated using a
spectrally-notched, chirped optical pulse. Simultaneous excitation of multiple QDs enables …