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What is Negativity and Quantum Discord Dynamics about?

This study investigates the time evolution of negativity and quantum discord in a pair of non-interacting qubits, with one qubit coupled to a decohering Davies-type Markovian environment. It finds that in pure dephasing, both negativity and quantum discord decay to zero over time, while in dissipative dynamics, negativity experiences sudden death and discord decreases continuously. The research highlights the differing robustness of these quantum correlations against environmental decoherence, suggesting th

Author

Muhammad Ramzan

Language

EN