Finding the optimal probe state for multiparameter quantum metrology using conic programming
The ultimate precision in quantum sensing could be achieved using optimal quantum probe
states. However, current quantum sensing protocols do not use probe states optimally …
states. However, current quantum sensing protocols do not use probe states optimally …
Multi-parameter quantum estimation of single-and two-mode pure Gaussian states
We discuss the ultimate precision bounds on the multiparameter estimation of single-and
two-mode pure Gaussian states. By leveraging on previous approaches that focused on the …
two-mode pure Gaussian states. By leveraging on previous approaches that focused on the …
Holevo Cram\'{e} r-Rao bound for multi-parameter estimation in nonlinear interferometers
M Zhou, H Ma, L Chen, W Zhang, CH Yuan - arxiv preprint arxiv …, 2025 - arxiv.org
Due to the potential of quantum advantage to surpass the standard quantum limit (SQL), the
nonlinear interferometers have garnered significant attention from researchers in the field of …
nonlinear interferometers have garnered significant attention from researchers in the field of …
Holevo Cram\'er-Rao bound: How close can we get without entangling measurements?
In multi-parameter quantum metrology, the resource of entanglement can lead to an
increase in efficiency of the estimation process. Entanglement can be used in the state …
increase in efficiency of the estimation process. Entanglement can be used in the state …
Role of the extended Hilbert space in the attainability of the Quantum Cram\'er-Rao bound for multiparameter estimation
The symmetric logarithmic derivative Cram\'er-Rao bound (SLDCRB) provides a
fundamental limit to the minimum variance with which a set of unknown parameters can be …
fundamental limit to the minimum variance with which a set of unknown parameters can be …