Geometric phase and Wehrl phase entropy for two superconducting qubits in a coherent field system under the effect of nonlinear medium

K. Berrada, A. Sabik, E.M. Khalil and S. Abdel-Khalek

Chaos, Solitons & Fractals, 2024, vol. 178, issue C

Abstract: In this paper, we study the dynamical behavior of coherence, geometric phase, Wehrl entropy (WE) for a quantum model consisting of two superconducting qubits (SC–Qs) in the presence of multi-photon transition. We develop the Hamiltonian model and solve the Schrödinger equation that leads to evaluate the density matrix of whole system as well as subsystems. We introduce the effects of nonlinearity and subsystems interaction and display the temporal behavior of different quantumness measures in the existence and absence of nonlinear Kerr medium and Ising interaction.

Keywords: Superconducting qubit; Wehrl phase entropy; Multi-photon transition; Ising parameter; Geometric phase (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:178:y:2024:i:c:s0960077923012730

DOI: 10.1016/j.chaos.2023.114371

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