Quantum Correlation Dynamics of Three Qubits in Non-Markovian Environments

• URL: http://arxiv.org/abs/2111.07423v1
• Date: Sun, 14 Nov 2021 19:13:54 GMT
• Title: Quantum Correlation Dynamics of Three Qubits in Non-Markovian Environments
• Authors: M. A. Shukri, Fares S. S. Alzahri and Ali Saif M. Hassan
• Abstract summary: We investigate the quantum correlation dynamics of three independent qubits each interacting with a zero temperature non-Markovian reservoir. It is found that the quantum correlation of such three qubits system revives after instantaneous disappearance period when a proper amount of non-Markovian is present.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the quantum correlation dynamics of three independent qubits each locally interacting with a zero temperature non-Markovian reservoir by using the Geometric measure of quantum discord (GQD). The dependence of quantum correlation dynamics on amount of non-Markovian, the degree of initial quantum correlation and purity of the initial states are studied in detail. It is found that the quantum correlation of such three qubits system revives after instantaneous disappearance period when a proper amount of non-Markovian is present. A comparison to the pairwise quantum discord and entanglement dynamics in three qubits system is also made.

Related papers

• Precision bounds for multiple currents in open quantum systems [37.69303106863453]
  We derivation quantum TURs and KURs for multiple observables in open quantum systems undergoing Markovian dynamics. Our bounds are tighter than previously derived quantum TURs and KURs for single observables. We also find an intriguing quantum signature of correlations captured by the off-diagonal element of the Fisher information matrix.
  arXiv  Detail & Related papers  (2024-11-13T23:38:24Z)
• Quantum coarsening and collective dynamics on a programmable quantum simulator [27.84599956781646]
  We experimentally study collective dynamics across a (2+1)D Ising quantum phase transition. By deterministically preparing and following the evolution of ordered domains, we show that the coarsening is driven by the curvature of domain boundaries. We quantitatively explore these phenomena and further observe long-lived oscillations of the order parameter, corresponding to an amplitude (Higgs) mode.
  arXiv  Detail & Related papers  (2024-07-03T16:29:12Z)
• Quantum correlations under decoherence [0.0]
  We examine the evolution of quantum entanglement and a few quantum correlations beyond entanglement, local quantum uncertainty and measurement-induced nonlocality. The steady state quantum correlations, being independent of the initial state, are found to remain all non-zero for low, finite temperatures.
  arXiv  Detail & Related papers  (2024-02-06T15:44:06Z)
• Observing super-quantum correlations across the exceptional point in a single, two-level trapped ion [48.7576911714538]
  In two-level quantum systems - qubits - unitary dynamics theoretically limit these quantum correlations to $2qrt2$ or 1.5 respectively. Here, using a dissipative, trapped $40$Ca$+$ ion governed by a two-level, non-Hermitian Hamiltonian, we observe correlation values up to 1.703(4) for the Leggett-Garg parameter $K_3$. These excesses occur across the exceptional point of the parity-time symmetric Hamiltonian responsible for the qubit's non-unitary, coherent dynamics.
  arXiv  Detail & Related papers  (2023-04-24T19:44:41Z)
• Quantum nonreciprocal interactions via dissipative gauge symmetry [18.218574433422535]
  One-way nonreciprocal interactions between two quantum systems are typically described by a cascaded quantum master equation. We present a new approach for obtaining nonreciprocal quantum interactions that is completely distinct from cascaded quantum systems.
  arXiv  Detail & Related papers  (2022-03-17T15:34:40Z)
• Quantum Non-equilibrium Many-Body Spin-Photon Systems [91.3755431537592]
  dissertation concerns the quantum dynamics of strongly-correlated quantum systems in out-of-equilibrium states. Our main results can be summarized in three parts: Signature of Critical Dynamics, Driven Dicke Model as a Test-bed of Ultra-Strong Coupling, and Beyond the Kibble-Zurek Mechanism.
  arXiv  Detail & Related papers  (2020-07-23T19:05:56Z)
• Synchronisation phase as an indicator of persistent quantum correlations between subsystems [68.8204255655161]
  Spontaneous synchronisation is a collective phenomenon that can occur in both dynamical classical and quantum systems. We show that our analysis applies to a variety of spontaneously synchronising open quantum systems.
  arXiv  Detail & Related papers  (2020-06-29T17:21:32Z)
• Dynamical pairwise entanglement and two-point correlations in the three-ligand spin-star structure [0.0]
  We consider the three-ligand spin-star structure through homogeneous Heisenberg interactions (XXX-3LSSS) It is shown that the time evolution of the central qubit "one-particle" state results in the generation of quantum W states at periodical time instants.
  arXiv  Detail & Related papers  (2020-06-04T09:53:40Z)
• Hierarchy of quantum correlations under non-Markovian dynamics [0.0]
  We investigate the dynamics of quantum correlations (QC) under the effects of reservoir memory. QC is a resource for quantum information and computation tasks.
  arXiv  Detail & Related papers  (2020-04-21T22:19:44Z)
• Measure of tripartite quantum correlation in multiqubit symmetric pure state [0.0]
  We propose a measure of tripartite quantum correlation in an arbitrary symmetric pure state of N correlated two-level atoms (qubits) We compute the third order moments of the collective pseudo-spin operators in terms of the individual atomic operators of the atoms in the assembly. We conjecture the way of determining the third order moments of the pseudo-spin operators of the two-level atoms in the assembly, experimentally.
  arXiv  Detail & Related papers  (2020-04-04T19:29:09Z)
• Quantum Information Scrambling and Entanglement in Bipartite Quantum States [0.0]
  We establish the mathematical connections among the quantifiers known as quantum information scrambling. We investigate the influence of QI scrambling on entanglement in two qubits prepared in Bell states.
  arXiv  Detail & Related papers  (2020-01-17T10:22:27Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.