210 citations · 2.8k across the 88 of their papers we have counts for
90 papers
Comment on J.Qin et al., Unconditional and Robust Quantum Metrological Advantage beyond N00N States, PRL 130, 070801 (2023) and J.A. H. Nielsen et.al., Deterministic Quantum Phase Estimation beyond N00N States. PRL 130, 123603 (2023)
Zdenek Hradil, Jaroslav Rehacek
The papers by Qin et al. [1] and Nielsen et al. [2] report an unconditional quantum metrological advantage based on squeezed-vacuum phase sensing. The principal evidence for this c…
Resolving the phase space
Zdenek Hradil, Jaroslav Rehacek
We show that the effective resolution of quantum inference is determined by a sampling Gram operator that defines the experimentally accessible degrees of freedom and the reconstru…
Fundamental and operational limitations of Fisher-information-based quantum metrology
Zdeněk Hradil, Jaroslav Řeháček
Quantum-enhanced sensing is commonly benchmarked using the quantum Fisher information (QFI), often interpreted as a direct indicator of achievable precision. However, such an inter…
Sampling the spatial coherence of light
M. Vitek, M. Peterek, D. Koutny +6
We introduce a novel application of the Hartmann sensor, traditionally designed for wavefront sensing, to measure the coherence properties of optical signals. By drawing an analogy…
Pulse characterization at the single-photon level through chronocyclic -function measurements
Abhinandan Bhattacharjee, Patrick Folge, Laura Serino +4
The characterization of the complex spectral amplitude that is, the spectrum and spectral phase, of single-photon-level light fields is a crucial capability for modern photonic qua…
Enhancing axial localization with wavefront control
M. Peterek, M. Paur, M. Vitek +6
Enhancing the ability to resolve axial details is crucial in three-dimensional optical imaging. We provide experimental evidence showcasing the ultimate precision achievable in axi…