Quantum Correlations and Speed Limit of Central Spin Systems |
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Authors: | Devvrat Tiwari Kavalambramalil G. Paulson Subhashish Banerjee |
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Affiliation: | Department of Physics, Indian Institute of Technology Jodhpur, Jodhpur, 342030 India |
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Abstract: | In this article, single, and two-qubit central spin systems interacting with spin baths are considered and their dynamical properties are discussed. The cases of interacting and non-interacting spin baths are considered and the quantum speed limit (QSL) time of evolution is investigated. The impact of the size of the spin bath on the quantum speed limit for a single qubit central spin model is analyzed. The quantum correlations for (non-)interacting two central spin qubits are estimated and their dynamical behavior with that of QSL time under various conditions are compared. How QSL time could be availed to analyze the dynamics of quantum correlations is shown. |
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Keywords: | central spin model quantum correlations quantum speed limit time |
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