Dynamics of quantum discord based on linear entropy and negativity of qutrit-qubit system under classical dephasing environments

Quantum teleportation in a two-superconducting qubit system under dephasing noisy channel: role of Josephson and mutual coupling energies

“…To be teleported, quantum states must be exposed to an external environment [29][30][31]. Several classical and quantumtype channels have recently been used to assess teleportation, quantum correlation dynamics, and preservation success [32][33][34][35][36][37][38][39][40][41][42][43][44]. The phonon baths, in combination with a nonmechanical resonator, are one of the best-performing cavities which have been found [45][46][47].…”

Witnessing Quantum Correlations in a Hybrid Qubit‐Qutrit System Under Intrinsic Decoherence

“…[1] Given the importance of this topic, quantum correlations beyond entanglement constitute a fascinating theme that has remained a hotly debated topic among quantum information and DOI: 10.1002/prop.202300032 computation analysts over the past decade. [2,3] Quantum entanglement and correlations beyond it are well-known as good resources in several areas of quantum information science, including the realization of Markovianity and non-Markovianity in open quantum systems, [4][5][6][7][8][9] quantum teleportation, [10][11][12] fractional computations, [13] quantum key distribution, [14] secure Big Data, [15] quantum speed limit time, [16] and so forth. For this reason, the search for such non-classical correlations that exist beyond entanglement remains a fascinating new frontier for quantum theorists and experimentalists to explore.…”

“…[41] Insofar as we deal with quantum correlations using hybrid qubit-qutrit states, we should mention that the conceptual framework for describing the separability of qubit-qutrit systems is richer than that of qubit-qubit systems. [4,6] Several ideas and methods have been developed in order to tackle this issue. It is shown that the qubit-qutrit systems remain strictly non-local even under the influence of different decoherent channels, which is still rare for qubit-qubit systems.…”

Pairwise quantum criteria and teleportation in a spin square complex

“…It is clear that having the matrix , one can easily evaluate the LQU for qubit-qudit quantum systems contrarily to quantum discord 17 . This is quite an easy task compared with the complicated minimization process over parameters due to the local measurements 13 , 16 , 18 . We notice that for a two-qubit pure state, the LQU coincides with the concurrence and vanishes for classically correlated states.…”