Geometric perspective on quantum parameter estimation

JS Sidhu, P Kok - AVS Quantum Science, 2020 - pubs.aip.org
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 …

Proposal for gravitational direct detection of dark matter

D Carney, S Ghosh, G Krnjaic, JM Taylor - Physical Review D, 2020 - APS
The only coupling dark matter is guaranteed to have with the standard model is through
gravity. Here we propose a concept for direct dark matter detection using only this …

Fisher information of correlated stochastic processes

M Radaelli, GT Landi, K Modi… - New Journal of Physics, 2023 - iopscience.iop.org
Many real-world tasks include some kind of parameter estimation, ie the determination of a
parameter encoded in a probability distribution. Often, such probability distributions arise …

Stochastic collisional quantum thermometry

E O'Connor, B Vacchini, S Campbell - Entropy, 2021 - mdpi.com
We extend collisional quantum thermometry schemes to allow for stochasticity in the waiting
time between successive collisions. We establish that introducing randomness through a …

Surpassing the thermal Cramér-Rao bound with collisional thermometry

A Shu, S Seah, V Scarani - Physical Review A, 2020 - APS
In collisional thermometry, a system in contact with the thermal bath is probed by a stream of
ancillas. Coherences and collective measurements were shown to improve the Fisher …

Coherence in quantum estimation

P Giorda, M Allegra - Journal of Physics A: Mathematical and …, 2017 - iopscience.iop.org
The geometry of quantum states provides a unifying framework for estimation processes
based on quantum probes, and it establishes the ultimate bounds of the achievable …

Practical quantum metrology in noisy environments

R Nichols, TR Bromley, LA Correa, G Adesso - Physical Review A, 2016 - APS
The problem of estimating an unknown phase φ using two-level probes in the presence of
unital phase-covariant noise and using finite resources is investigated. We introduce a …

Criticality-enhanced quantum sensor at finite temperature

W Wu, C Shi - Physical Review A, 2021 - APS
Conventional criticality-based quantum metrological schemes work only at zero or very low
temperature because the quantum uncertainty around the quantum phase-transition point is …

Quantum secure metrology for network sensing-based applications

MT Rahim, A Khan, U Khalid, J Rehman, H Jung… - Scientific Reports, 2023 - nature.com
Quantum secure metrology protocols harness quantum effects to probe remote systems with
enhanced precision and security. Traditional QSM protocols require multi-partite …

Distributed quantum sensing network with geographically constrained measurement strategies

Y Cao, X Wu - … 2023-2023 IEEE International Conference on …, 2023 - ieeexplore.ieee.org
Distributed quantum sensing network has the potential of enhancing the precision in
estimating a global function of local parameters by utilizing an entangled probe, compared …