Dynamical pairwise entanglement and two-point correlations in the three-ligand spin-star structure
arXiv:2006.02738 · doi:10.1016/j.physa.2017.04.007
Abstract
We consider the three-ligand spin-star structure through homogeneous Heisenberg interactions (XXX-3LSSS) in the framework of dynamical pairwise entanglement. It is shown that the time evolution of the central qubit "one-particle" state (COPS) results in the generation of quantum W states at periodical time instants. On the contrary, W states cannot be generated from the time evolution of a ligand "one-particle" state (LOPS). We also investigate the dynamical behavior of two-point quantum correlations as well as the expectation values of the different spin-components for each element in the XXX-3LSSS. It is found that when a W state is generated, the same value of concurrence among all qubits arises from xx and yy two-point quantum correlations. On the opposite, zz quantum correlation between any two qubits vanishes at these time instants.
arXiv comment13 pages, 18 figures
References in corpus (45)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Separability Criterion for Density Matrices
- A computable measure of entanglement
- Quantum cryptography: Public key distribution and coin tossing
- Separability of Mixed States: Necessary and Sufficient Conditions
- Three qubits can be entangled in two inequivalent ways
- Entanglement of a Pair of Quantum Bits
- Distributed Entanglement
- Secure Quantum Key Distribution
- 14-qubit entanglement: creation and coherence
- Entanglement in the Quantum Heisenberg XY model
- Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
- Measures and dynamics of entangled states
- Dynamics of Entanglement in One-Dimensional Spin Systems
- Non-Markovian dynamics in a spin star system: Exact solution and approximation techniques
- Quantum teleportation via a W state
- Quantum thermal transistor
- Experimental multiparticle entanglement dynamics induced by decoherence
- Scheme for the preparation of the multi-particle entanglement in cavity QED
- Can the states of the W-class be suitable for teleportation
- Polarization Entangled W State using Parametric Down-Conversion
- Quantum correlations and entanglement in far-from-equilibrium spin systems
- The states of W-class as shared resources for perfect teleportation and superdense coding
- Teleportation of a two-particle entangled state via W class states
- Non-Markovian dynamics of a single electron spin coupled to a nuclear spin bath
- Non-Markovian dynamics of a qubit coupled to an Ising spin bath
- Quantum cloning in spin networks
- A photonic Carnot engine powered by a quantum spin-star network
- Bang-Bang control of a qubit coupled to a quantum critical spin bath
- On multiparticle W states, their implementations and applications in quantum information problems
- Magnetic Entanglement in Spin-1/2 XX Chains
- Entanglement dynamics of qubits in a common environment
- Channel Capacities of an Exactly Solvable Spin-Star System
- Tripartite thermal correlations in an inhomogeneous spin-star system
- Genuine Tripartite Entanglement in a Spin-Star Network at Thermal Equilibrium
- Quantum correlations in the 1D spin-1/2 Ising model with added Dzyaloshinskii-Moriya interaction
- Comparison of Star and Ring Topologies for Entanglement Distribution
- Generation of GHZ and W states for stationary qubits in spin network via resonance scattering
- Geometry of a two-spin quantum state in evolution
- Entanglement oscillations in open Heisenberg chains
- Concurrence in Disordered Systems
- Pre-management of Disentanglement
- Entanglement formation under random interactions
- Supervised secure entanglement sharing for faithful quantum teleportation via tripartite W states
- Role of external fields in enhancing long-distance entanglement at finite temperatures
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- Exact dynamics of concurrence-based entanglement in a system of four spin-1/2 particles on a triangular ladder structure
- Entanglement dynamics and fractional quantum state transport in the spin- triangular plaquette