773 citations · 4.9k across the 56 of their papers we have counts for
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Bayesian quantum frequency estimation in presence of collective dephasing
Katarzyna Macieszczak, Martin Fraas, Rafal Demkowicz-Dobrzanski
We advocate a Bayesian approach to optimal quantum frequency estimation - an important issue for future quantum enhanced atomic clock operation. The approach provides a clear insig…
Dephasing in coherent communication with weak signal states
Marcin Jarzyna, Konrad Banaszek, Rafal Demkowicz-Dobrzanski
We analyze the ultimate quantum limit on the accessible information for an optical communication scheme when time bins carry coherent light pulses prepared in one of several orthog…
Fundamental quantum interferometry bound for the squeezed-light-enhanced gravitational-wave detector GEO600
Rafal Demkowicz-Dobrzanski, Konrad Banaszek, Roman Schnabel
The fundamental quantum interferometry bound limits the sensitivity of an interferometer for a given total rate of photons and for a given decoherence rate inside the measurement d…
Efficient tools for quantum metrology with uncorrelated noise
Jan Kolodynski, Rafal Demkowicz-Dobrzanski
Quantum metrology offers an enhanced performance in experiments such as gravitational wave-detection, magnetometry or atomic clocks frequency calibration. The enhancement, however,…
Matrix product states for quantum metrology
Marcin Jarzyna, Rafal Demkowicz-Dobrzanski
We demonstrate that the optimal states in lossy quantum interferometry may be efficiently simulated using low rank matrix product states. We argue that this should be expected in a…