[HTML][HTML] Quantum phase estimation and realistic detection schemes in Mach-Zehnder interferometer using SU (2) coherent states

M Abdellaoui, NE Abouelkhir, A Slaoui, RA Laamara - Physics Letters A, 2024 - Elsevier
In quantum parameter estimation, the quantum Cramér-Rao bound (QCRB) sets a
fundamental limit on the precision achievable with unbiased estimators. It relates the …

Achieving quantum metrological performance and exact Heisenberg limit precision through superposition of s-spin coherent states

H Saidi, H El Hadfi, A Slaoui, R Ahl Laamara - The European Physical …, 2024 - Springer
In quantum phase estimation, the Heisenberg limit provides the ultimate accuracy over quasi-
classical estimation procedures. However, realizing this limit hinges upon both the detection …

Parity symmetry breaking of spin-j coherent state superpositions in Gaussian noise channel

B El Alaoui, A Slaoui, A Lakhfif, RA Laamara - Physica Scripta, 2024 - iopscience.iop.org
Abstract The Wigner function and Wigner-Yanase skew information are connected through
quantum coherence. States with high skew information often exhibit more pronounced …

Enhancing phase sensitivity in Mach-Zehnder interferometer with various detection schemes using SU (1, 1) coherent states

NE Abouelkhir, A Slaoui, EH Saidi, RA Laamara… - arXiv preprint arXiv …, 2024 - arxiv.org
Improving interferometric phase sensitivity is crucial for high-precision measurements in
rapidly developing quantum technologies. The Mach-Zehnder interferometer (MZI) is a …

Dynamic Evolution of Quantum Fisher and Skew Information under Decoherence in Three-Qubit X-States

A Naimy, A Slaoui, A Ali, HE Hadfi, RA Laamara… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum metrology leverages quantum effects such as squeezing, entanglement, and other
quantum correlations to boost precision in parameter estimation by saturating quantum …

Constructing Multipartite Planar Maximally Entangled States from Phase States and Quantum Secret Sharing Protocol

L Bouhouch, Y Dakir, A Slaoui, RA Laamara - arXiv preprint arXiv …, 2024 - arxiv.org
In this paper, we explore the construction of Planar Maximally Entangled (PME) states from
phase states. PME states form a class of $ n $-partite states in which any subset of adjacent …