50 citations · 188 across the 12 of their papers we have counts for
12 papers
Quantum enhanced metrology of Hamiltonian parameters beyond the Cramèr-Rao bound
Luigi Seveso, Matteo G. A. Paris
This is a tutorial aimed at illustrating some recent developments in quantum parameter estimation beyond the Cramèr-Rao bound, as well as their applications in quantum metrology. O…
On the discontinuity of the quantum Fisher information for quantum statistical models with parameter dependent rank
Luigi Seveso, Francesco Albarelli, Marco G. Genoni +1
We address the discontinuities of the quantum Fisher information (QFI) that may arise when the parameter of interest takes values that change the rank of the quantum statistical mo…
Quantum sensing of curvature
Daniele Bonalda, Luigi Seveso, Matteo G. A. Paris
We address the problem of sensing the curvature of a manifold by performing measurements on a particle constrained to the manifold itself. In particular, we consider situations whe…
The walker speaks its graph: global and nearly-local probing of the tunnelling amplitude in continuous-time quantum walks
Luigi Seveso, Claudia Benedetti, Matteo G. A. Paris
We address continuous-time quantum walks on graphs, and discuss whether and how quantum-limited measurements on the walker may extract information on the tunnelling amplitude betwe…
Trade-off between information and disturbance in qubit thermometry
Luigi Seveso, Matteo G. A. Paris
We address the trade-off between information and disturbance in qubit thermometry from the perspective of quantum estimation theory. Given a quantum measurement, we quantify inform…
Estimation of general Hamiltonian parameters via controlled energy measurements
Luigi Seveso, Matteo G. A. Paris
The quantum Cramér-Rao theorem states that the quantum Fisher information (QFI) bounds the best achievable precision in the estimation of a quantum parameter . This is true, how…
Coarse-grained entanglement classification through orthogonal arrays
Luigi Seveso, Dardo Goyeneche, Karol Życzkowski
Classification of entanglement in multipartite quantum systems is an open problem solved so far only for bipartite systems and for systems composed of three and four qubits. We pro…
Does universality of free-fall apply to the motion of quantum probes?
Luigi Seveso, Valerio Peri, Matteo G. A. Paris
Can quantum-mechanical particles propagating on a fixed spacetime background be approximated as test bodies satisfying the weak equivalence principle? We ultimately answer the ques…
Can quantum probes satisfy the weak equivalence principle?
Luigi Seveso, Matteo G. A. Paris
We address the question whether quantum probes in a gravitational field can be considered as test particles obeying the weak equivalence principle (WEP). A formulation of the WEP i…
Quantum metrology beyond the Quantum Cramér-Rao theorem
Luigi Seveso, Matteo A. C. Rossi, Matteo G. A. Paris
A usual assumption in quantum estimation is that the unknown parameter labels the possible states of the system, while it influences neither the sample space of outcomes nor the me…
Quantum limits to mass sensing in a gravitational field
Luigi Seveso, Valerio Peri, Matteo G. A. Paris
We address the problem of estimating the mass of a quantum particle in a gravitational field and seek the ultimate bounds to precision of quantum-limited detection schemes. In part…
Geometry and Dynamics of a Coupled 4D-2D Quantum Field Theory
Stefano Bolognesi, Chandrasekhar Chatterjee, Jarah Evslin +3
Geometric and dynamical aspects of a coupled 4D-2D interacting quantum field theory - the gauged nonAbelian vortex - are investigated. The fluctuations of the internal 2D nonAbelia…