The classical-quantum boundary for correlations:<? format?> Discord and related measures

K Modi, A Brodutch, H Cable, T Paterek, V Vedral - Reviews of Modern Physics, 2012 - APS
One of the best signatures of nonclassicality in a quantum system is the existence of
correlations that have no classical counterpart. Different methods for quantifying the …

Quantum discord for multiqubit systems

B Li, CL Zhu, XB Liang, BL Ye, SM Fei - Physical Review A, 2021 - APS
We evaluate analytically the quantum discord for a large family of multiqubit states. It is
interesting to note that the quantum discord of three qubits and five qubits is the same, as is …

Enhancing robustness of noisy qutrit teleportation with Markovian memory

RQ Xu, RG Zhou, YC Li, SX Jiang, H Ian - EPJ Quantum Technology, 2022 - Springer
Quantum teleportation is the fundamental communication unit in quantum communication.
Here, a three-level system is selected for storing and transmitting quantum information, due …

Entropic uncertainty and quantum correlations dynamics in a system of two qutrits exposed to local noisy channels

AU Rahman, MY Abd-Rabbou, SM Zangi… - Physica Scripta, 2022 - iopscience.iop.org
We address the dynamics of the lower bound of geometric quantum discord and quantum-
memory-assisted entropic uncertainty in a two-qutrit system when exposed to classical …

Measuring geometric quantum discord using one bit of quantum information

G Passante, O Moussa, R Laflamme - Physical Review A—Atomic, Molecular …, 2012 - APS
We describe an efficient DQC1 (deterministic quantum computation with one quantum qubit)
algorithm to quantify the amount of geometric quantum discord present in the output state of …

Work and heat value of bound entanglement

A Tuncer, M Izadyari, CB Dağ, F Ozaydin… - Quantum Information …, 2019 - Springer
Entanglement has recently been recognized as an energy resource which can outperform
classical resources if decoherence is relatively low. Multi-atom entangled states can mutate …

Beyond qubits: an extensive noise analysis for qutrit quantum teleportation

A Sebastian, AN Mansar, NC Randeep - International Journal of …, 2023 - Springer
The four quantum noises-Bit Flip, Phase Flip, Depolarization, and Amplitude Damping-as
well as any potential combinations of them, are examined in this paper's investigation of …

Distillability sudden death in qutrit-qutrit systems under global and multilocal dephasing

M Ali - Physical Review A—Atomic, Molecular, and Optical …, 2010 - APS
Recently Song [Phys. Rev. A 80, 012331 (2009)] discovered that certain two-qutrit entangled
states interacting with multilocal dephasing undergo distillability sudden death (DSD). We …

Quantum discord in spin-cluster materials

MA Yurishchev - Physical Review B—Condensed Matter and Materials …, 2011 - APS
The total quantum correlation (discord) in Heisenberg dimers is expressed via the spin-spin
correlation function, internal energy, specific heat, or magnetic susceptibility. This allows one …

Quantum correlations and decoherence dynamics for a qutrit–qutrit system under random telegraph noise

AT Tsokeng, M Tchoffo, LC Fai - Quantum Information Processing, 2017 - Springer
We analyze the effect of a classical random telegraph noise on the dynamics of quantum
correlations and decoherence between two non-interacting spin-qutrit particles, initially …