Work

EPR steering and parameter estimation in the context of dephasing of two interacting qubits

Year: 2024

Type: article

Abstract: The quantum steering and quantum Fisher information (QFI) for two qubits in the presence of qubits interaction and dephasing coupling is studied. We show how the dynamics of the quantumness measures can be influenced by the qubits interaction considering symmetry and asymmetry interaction between the environment and the qubits. We find that protection of the steering and enhancement of the parameter estimation precision (PEP) can be made through a proper choice of the quantum model parameters. Finally, we display the relationship between the fidelity, steering and QFI during the dynamics.

Source: Results in Physics

DOI: 10.1016/j.rinp.2024.107689

Authors: K. Berrada, O. Aldaghri, A. Sabik, H. Eleuch

Institutions: The Abdus Salam International Centre for Theoretical Physics (ICTP), Imam Mohammad ibn Saud Islamic University, Abu Dhabi University, The University of Texas System, University of Sharjah

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,690

Funders: Deanship of Scientific Research, Imam Mohammed Ibn Saud Islamic University, Al-Imam Muhammad Ibn Saud Islamic University