31 citations · 78 across the 6 of their papers we have counts for
6 papers
Estimating phase with a random generator: Strategies and resources in multiparameter quantum metrology
Rozhin Yousefjani, Rosanna Nichols, Shahriar Salimi +1
Quantum metrology aims to exploit quantum phenomena to overcome classical limitations in the estimation of relevant parameters. We consider a probe undergoing a phase shift who…
Noisy Metrology: A saturable lower bound on quantum Fisher information
R. Yousefjani, S. Salimi, A. S. Khorashad
In order to provide a guaranteed precision and a more accurate judgement about the true value of the Cramér-Rao bound and its scaling behavior, an upper bound (equivalently a lower…
Enhancement of Frequency Estimation by Spatially Correlated Environments
R. Yousefjani, S. Salimi, A. S. Khorashad
In metrological tasks, employing entanglement can quantitatively improve the precision of parameter estimation. However, susceptibility of the entanglement to decoherence fades thi…
Electric Field effects on quantum correlations in semiconductor quantum dots
S. Shojaei, M. Mahdian, R. Yousefjani
We study the effect of external electric bias on the quantum correlations in the array of optically excited coupled semiconductor quantum dots. The correlations are characterized b…
Correlation dynamics of three spin under a classical dephasing environment
M. Mahdian, R. Yousefjani, S. Salimi
By starting from the stochastic Hamiltonian of the three correlated spins and modeling their frequency fluctuations as caused by dephasing noisy environments described by Ornstein-…
Quantum discord evolution of three-qubit states under noisy channels
M. Mahdian, R. Yousefjani, S. Salimi
We investigated the dissipative dynamics of quantum discord for correlated qubits under Markovian environments. The basic idea in the present scheme is that quantum discord is more…