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 …
Proposal for gravitational direct detection of dark matter
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 …
gravity. Here we propose a concept for direct dark matter detection using only this …
Fisher information of correlated stochastic processes
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 …
parameter encoded in a probability distribution. Often, such probability distributions arise …
Stochastic collisional quantum thermometry
We extend collisional quantum thermometry schemes to allow for stochasticity in the waiting
time between successive collisions. We establish that introducing randomness through a …
time between successive collisions. We establish that introducing randomness through a …
Surpassing the thermal Cramér-Rao bound with collisional thermometry
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 …
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 …
based on quantum probes, and it establishes the ultimate bounds of the achievable …
Practical quantum metrology in noisy environments
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 …
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 …
temperature because the quantum uncertainty around the quantum phase-transition point is …
Quantum secure metrology for network sensing-based applications
Quantum secure metrology protocols harness quantum effects to probe remote systems with
enhanced precision and security. Traditional QSM protocols require multi-partite …
enhanced precision and security. Traditional QSM protocols require multi-partite …
Distributed quantum sensing network with geographically constrained measurement strategies
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 …
estimating a global function of local parameters by utilizing an entangled probe, compared …