The Intelligent Quantum Sensors Lab, led by Rafał Ołdziejewski, develops theory and numerical methods for quantum sensors operating under realistic conditions. We study the complete sensing process, from the interaction of an external signal with a quantum system to its estimation from noisy measurement data. Our main platforms are Rydberg-based radio-frequency receivers and electrometers, cold-atom systems, and ultrathin semiconductors. We investigate how interactions, entanglement, measurement backaction, decoherence, and technical noise affect sensitivity and robustness, and when many-body effects provide a genuine metrological advantage. We combine physical models with statistical inference and adaptive control, allowing sensors to track changing signals and adjust their operation in real time. We also study distributed sensing with networks of quantum probes. Working closely with experimental groups, we aim to turn these models into protocols that can be tested on real devices. Applications range from precision measurement and communications to remote sensing in extreme environments, including space and offshore energy systems. The resulting methods also apply to other noisy complex systems, such as energy infrastructure and finance.

Team

Piotr Dulian

PhD Student

Recent publications

  1. M. Łebek, J. Kopyciński, W. Górecki, R. Ołdziejewski, and K. Pawłowski, Phase diagram and elementary excitations of strongly interacting droplets with non-local interactions, J. Phys. B 58, 065301 (2025). doi:10.1088/1361-6455/adba9d
  2. M. Wagner, R. Ołdziejewski, F. Rose, V. Köder, C. Kuhlenkamp, A. İmamoğlu, and R. Schmidt, Feshbach Resonances in Exciton–Charge-Carrier Scattering in Semiconductor Bilayers, Phys. Rev. Lett. 134, 076903 (2025). doi:10.1103/physrevlett.134.076903
  3. J. Knörzer, R. Ołdziejewski, P. A. Murthy, and I. Amelio, Fermionization and collective excitations of one-dimensional polariton lattices, Phys. Rev. A 110, 063516 (2024). doi:10.1103/physreva.110.063516