High-impedance microwave resonators with two-photon nonlinear effects

S Andersson, H Havir, A Ranni, S Haldar… - Nature …, 2025 - nature.com
Nonlinear effects play a central role in photonics as they form the foundation for most of the
device functionalities such as amplification and quantum state preparation and detection …

Coherence of an Electronic Two-Level System under Continuous Charge Sensing by a Quantum Dot Detector

S Haldar, M Munk, H Havir, W Khan, S Lehmann… - Physical Review Letters, 2025 - APS
We investigate experimentally the quantum coherence of an electronic two-level system in a
double quantum dot under continuous charge detection. The charge state of the two-level …