Information quantifiers, entropy squeezing and entanglement properties of superconducting qubit-deformed bosonic field system under dephasing effect. (English) Zbl 1387.81098
Summary: In this paper, we present a detailed study on the evolution of some measures of nonclassicality and entanglement in the framework of the interaction between a superconducting qubit and deformed bosonic fields under decoherence effect. We compare the dynamical behavior of the different quantum quantifiers by exploiting a large set of nonlinear bosonic fields that are characterized by the deformation parameter. Additionally, we demonstrate how the connection between the appearance of the nonlinearity in the deformed field and the quantum information quantifiers. The time correlation between entropy squeezing, purity, and entanglement is examined in terms of the physical parameters involved in the whole system. Lastly, we explore the exact ranges of the physical parameters in order to combat the decoherence effect and maintain high amount of entanglement during the time evolution.
MSC:
| 81P45 | Quantum information, communication, networks (quantum-theoretic aspects) |
| 94A17 | Measures of information, entropy |
| 82D55 | Statistical mechanics of superconductors |
| 81S22 | Open systems, reduced dynamics, master equations, decoherence |
| 81P40 | Quantum coherence, entanglement, quantum correlations |
Keywords:
information quantifiers; entropy squeezing; nonlocal correlation; superconducting qubit; deformed bosonic field; decoherenceReferences:
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