2 papers
quant-ph2025
Metrological symmetries in singular quantum multi-parameter estimation
George Mihailescu, Saubhik Sarkar, Abolfazl Bayat +2
The theoretical foundation of quantum sensing is rooted in the Cramér-Rao formalism, which establishes quantitative precision bounds for a given quantum probe. In many practical s…
quant-ph2025
Uncertain Quantum Critical Metrology: From Single to Multi Parameter Sensing
George Mihailescu, Steve Campbell, Karol Gietka
Critical quantum metrology relies on the extreme sensitivity of a system's eigenstates near the critical point of a quantum phase transition to Hamiltonian perturbations. This mean…