36 citations · 119 across the 10 of their papers we have counts for
5 papers · 1 filter
Quantum parameter estimation in a dissipative environment
Wei Wu, Chuan Shi
We investigate the performance of quantum parameter estimation based on a qubit probe in a dissipative bosonic environment beyond the traditional paradigm of weak-coupling and rota…
Criticality-enhanced quantum sensor at finite temperature
Wei Wu, Chuan Shi
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 g…
Non-Markovian temperature sensing
Ze-Zhou Zhang, Wei Wu
We investigate the sensing performance of a single-qubit quantum thermometer within a non-Markovian dynamical framework. By employing an exactly numerical hierarchical equations of…
Gaussian quantum metrology in a dissipative environment
Wei Wu, Jun-Hong An
Quantum metrology pursues high-precision measurements of physical quantities by using quantum resources. However, the decoherence generally hinders its performance. Previous work f…
Threshold for a discrete-variable sensor of quantum reservoirs
Wei Wu, Zhen Peng, Si-Yuan Bai +1
Quantum sensing employs quantum resources of a sensor to attain a smaller estimation error of physical quantities than the limit constrained by classical physics. To measure a quan…