Geometric perspective on quantum parameter estimation
Quantum metrology holds the promise of an early practical application of quantum
technologies, in which measurements of physical quantities can be made with much greater …
technologies, in which measurements of physical quantities can be made with much greater …
[HTML][HTML] Photonic quantum metrology
Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …
aim of this research field is the estimation of unknown parameters exploiting quantum …
Distributed quantum metrology with linear networks and separable inputs
We derive a bound on the ability of a linear-optical network to estimate a linear combination
of independent phase shifts by using an arbitrary nonclassical but unentangled input state …
of independent phase shifts by using an arbitrary nonclassical but unentangled input state …
The resurgence of the linear optics quantum interferometer—recent advances & applications
Linear optics has seen a resurgence for applications in quantum information processing
owing to its miniaturisation on-chip, and increase in production efficiency and quality of …
owing to its miniaturisation on-chip, and increase in production efficiency and quality of …
Experimental phase estimation enhanced by machine learning
A Lumino, E Polino, AS Rab, G Milani, N Spagnolo… - Physical Review …, 2018 - APS
Phase-estimation protocols provide a fundamental benchmark for the field of quantum
metrology. The latter represents one of the most relevant applications of quantum theory …
metrology. The latter represents one of the most relevant applications of quantum theory …
Fock state-enhanced expressivity of quantum machine learning models
The data-embedding process is one of the bottlenecks of quantum machine learning,
potentially negating any quantum speedups. In light of this, more effective data-encoding …
potentially negating any quantum speedups. In light of this, more effective data-encoding …
Multiphoton interference in quantum fourier transform circuits and applications to quantum metrology
Quantum Fourier transforms (QFTs) have gained increased attention with the rise of
quantum walks, boson sampling, and quantum metrology. Here, we present and …
quantum walks, boson sampling, and quantum metrology. Here, we present and …
Transmission estimation at the Cramér-Rao bound for squeezed states of light in the presence of loss and imperfect detection
TS Woodworth, KWC Chan, C Hermann-Avigliano… - Physical Review A, 2020 - APS
Enhancing the precision of a measurement requires maximizing the information that can be
gained about the quantity of interest from probing a system. For optical-based …
gained about the quantity of interest from probing a system. For optical-based …
Multiparameter estimation with single photons—linearly-optically generated quantum entanglement beats the shotnoise limit
It was suggested in (Motes et al 2015 Phys. Rev. Lett. 114 170802) that optical networks with
relatively inexpensive overheads—single photon Fock states, passive optical elements, and …
relatively inexpensive overheads—single photon Fock states, passive optical elements, and …
Generating entanglement with linear optics
Entanglement is the basic building block of linear optical quantum computation, and as such
understanding how to generate it in detail is of great importance for optical architectures. We …
understanding how to generate it in detail is of great importance for optical architectures. We …