1.9k citations · 4.4k across the 99 of their papers we have counts for
5 papers · 1 filter
Quantum-Optimal Frequency Estimation of Stochastic AC Fields
Anirban Dey, Sara Mouradian, Cosmo Lupo +1
Resolving frequencies in a time-dependent field is classically limited by the measurement bandwidth. Using tools from quantum metrology and quantum control may overcome this limit,…
Single-photon super-resolved spectroscopy from spatial-mode demultiplexing
Luigi Santamaria Amato, Fabrizio Sgobba, Deborah Pallotti +1
We demonstrate spectroscopy of incoherent light with sub-diffraction resolution. In a proof-of-principle experiment we analyze the spectrum of a pair of incoherent point-like sourc…
Optimal and robust error filtration for quantum information processing
Aaqib Ali, Giovanni Scala, Cosmo Lupo
Error filtration is a hardware scheme that mitigates noise by exploiting auxiliary qubits and entangling gates. Although both signal and ancillas are subject to local noise, constr…
Machine learning with sub-diffraction resolution in the photon-counting regime
Giuseppe Buonaiuto, Cosmo Lupo
The resolution of optical imaging is classically limited by the width of the point-spread function, which in turn is determined by the Rayleigh length. Recently, spatial-mode demul…
Security of hybrid BB84 with heterodyne detection
Jasminder S. Sidhu, Rocco Maggi, Saverio Pascazio +1
Quantum key distribution (QKD) promises everlasting security based on the laws of physics. Most common protocols are grouped into two distinct categories based on the degrees of fr…