output
19952026
Showing quant-phShow all

50 papers · 1 filter

quant-ph2026

Heisenberg-scaling characterization of a two-channel optical network via two-port homodyne detection

Atmadev Rai, Paolo Facchi, Vincenzo Tamma

We present a fully Gaussian and experimentally feasible scheme for the simultaneous estimation of the four real parameters that characterize a two-channel optical network. The sche…

quant-ph2026

Multiphoton Hong-Ou-Mandel Interference Enables Superresolution of Bright Thermal Sources

Aiman Khan, Danilo Triggiani, Vincenzo Tamma

We present a quantum optical scheme for imaging transversely displaced thermal sources of arbitrary intensities by employing multiphoton interference with a reference single-photon…

quant-ph2025★ 1 cited

Multiparameter quantum metrology at Heisenberg scaling for an arbitrary two-channel linear interferometer with squeezed light

Atmadev Rai, Danilo Triggiani, Paolo Facchi +1

We present a framework for simultaneously estimating all four real parameters of a general two-channel unitary U(2) with Heisenberg-scaling precision. We derive analytical expressi…

quant-ph2025★ 1 cited

Ultimate quantum sensitivity in the 3D relative localisation of two single-photon emitters via two-photon interference

Luca Maggio, Vincenzo Tamma

We present a quantum sensing protocol for the simultaneous estimation of the difference in the localization parameters of two single-photon sources, paving the way to single-photon…

quant-ph2025★ 8 cited

A tensor network approach to sensing quantum light-matter interactions

Aiman Khan, Francesco Albarelli, Animesh Datta

We present the fundamental limits to the precision of estimating parameters of a quantum matter system probed by light, even when some of the light is lost. This practically inevit…

quant-ph2024★ 6 cited

Superresolution imaging of two incoherent sources via two-photon interference sampling measurements in the transverse momenta

Salvatore Muratore, Danilo Triggiani, Vincenzo Tamma

The Rayleigh's criterion infamously imposes a minimum separation between two incoherent sources for them to be distinguishable via classical methods. In this work, we demonstrate t…