Disorder-assisted distribution of entanglement in spin chains
arXiv:1707.05865 · doi:10.1103/PhysRevA.96.032315
Abstract
We study the creation and distribution of entanglement in disordered -type spin- chains for the paradigmatic case of a single flipped spin prepared on a fully polarized background. The local magnetic field is set to follow a disordered long-range-correlated sequence with power-law spectrum. Depending on the degree of correlations of the disorder, a set of extended modes emerge in the middle of the band yielding an interplay between localization and delocalization. As a consequence, a rich variety of entanglement distribution patterns arises, which we evaluate here through the concurrence between two spins. We show that, even in the presence of disorder, the entanglement wave can be pushed to spread out reaching distant sites and also enhance pairwise entanglement between the initial site and the rest of the chain. We also study the propagation of an initial maximally-entangled state through the chain and show that correlated disorder improves the transmission quite significantly when compared with the uncorrelated counterpart. Our work contributes in designing solid-state devices for quantum information processing in the realistic setting of correlated static disorder.
arXiv comment11 pages, 7 figures
References in corpus (69)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Distributed Entanglement
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- Quantum Communication Through an Unmodulated Spin Chain
- Mixed-state entanglement and distillation: is there a ``bound'' entanglement in nature?
- Perfect state transfer in quantum spin networks
- Single-Spin Addressing in an Atomic Mott Insulator
- Avalanche Dynamics in Evolution, Growth, and Depinning Models
- Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays
- Quantum dynamics of a single, mobile spin impurity
- Localization and Mobility Edge in One-Dimensional Potentials with Correlated Disorder
- Dynamics of Entanglement in One-Dimensional Spin Systems
- Anomalous Localization in Low-Dimensional Systems with Correlated Disorder
- Dynamics and manipulation of entanglement in coupled harmonic systems with many degrees of freedom
- Unmodulated spin chains as universal quantum wires
- Robust Quantum State Transfer in Random Unpolarized Spin Chains
- Experimental observation of the mobility edge in a waveguide with correlated disorder
- Perfect quantum state transfer with randomly coupled quantum chains
- Long-distance entanglement and quantum teleportation in XX spin chains
- Bounds on Information Propagation in Disordered Quantum Spin Chains
- Quantum state transmission via a spin ladder as a robust data bus
- Limit Theorem for Continuous-Time Quantum Walk on the Line
- Perfect state transfer in long-range interacting spin chains
- Optimal dynamics for quantum-state and entanglement transfer through homogeneous quantum wires
- Spatially Resolved Detection of a Spin-Entanglement Wave in a Bose-Hubbard Chain
- From perfect to fractal transmission in spin chains
- 99%-fidelity ballistic quantum-state transfer through long uniform channels
- Bloch-like oscillations in a one-dimensional lattice with long-range correlated disorder
- Enhancement of localization in one-dimensional random potentials with long-range correlations
- Solid-State Quantum Communication With Josephson Arrays
- NMR quantum simulation of localization effects induced by decoherence
- A Faithful Communication Hamiltonian in Photonic Lattices
- Long quantum channels for high-quality entanglement transfer
- Robustness of spin-coupling distributions for perfect quantum state transfer
- Perfect Quantum Routing in Regular Spin Networks
- Multiuser quantum communication networks
- Routing quantum information in spin chains
- Quantum-state transfer via resonant tunnelling through local field induced barriers
- Entanglement dynamics in chains of qubits with noise and disorder
- State transfer in static and dynamic spin chains with disorder
- Delocalization in harmonic chains with long-range correlated random masses
- Excitation and Entanglement Transfer Versus Spectral Gap
- Quantum-state transfer in staggered coupled-cavity arrays
- Dynamics and Control of a Quasi-1D Spin System
- Spin chains for robust state transfer: Modified boundary couplings vs. completely engineered chains
- Delocalization and spin-wave dynamics in ferromagnetic chains with long-range correlated random exchange
- Long-distance entanglement in many-body atomic and optical systems
- Transfer of arbitrary two qubit states via a spin chain
- Topologically protected localised states in spin chains
- Robust Quantum Entanglement Generation and Generation-plus-Storage Protocols with Spin Chains
- Local control of entanglement in a spin chain
- Long-distance entanglement and quantum teleportation in coupled cavity arrays
- Quantum communication beyond the localization length in disordered spin chains
- Perfect quantum state transfer with spinor bosons on weighted graphs
- Peierls distorted chain as a quantum data bus for quantum state transfer
- Exploiting boundary states of imperfect spin chains for high-fidelity state transfer
- Engineering correlation and entanglement dynamics in spin systems
- Entanglement localization by a single defect in a spin chain
- Practicality of spin chain 'wiring' in diamond quantum technologies
- Modular Entanglement
- Microwave realization of quasi one-dimensional systems with correlated disorder
- Quantum non-Markovianity induced by Anderson localization
- Superballistic Diffusion of Entanglement in Disordered Spin Chains
- Quantum transport with coupled cavities on the Apollonian network
- Quantum Error Correction for State Transfer in Noisy Spin Chains
- Entanglement in correlated random spin chains, RNA folding and kinetic roughening
- Magnon delocalization in ferromagnetic chains with long-range correlated disorder
- High-Probability Quantum State Transfer in the Alternating Open Chains of 1/2 Spins with XY Hamiltonian
- Staggered magnetization and entanglement enhancement by magnetic impurities in spin chain
Cited by in corpus (16)
- Spin chains for two-qubit teleportation
- High-fidelity state transfer through long-range correlated disordered quantum channels
- Interplay between speed and fidelity in off-resonant quantum-state transfer protocols
- Almost perfect transport of an entangled two-qubit state through a spin chain
- Disorder-safe entanglement transfer through ladder qubit chains
- Entanglement generation between distant parties via disordered spin chains
- Almost perfect transmission of multipartite entanglement through disordered and noisy spin chains
- Topological Protection and Control of Quantum Markovianity
- Disorder-assisted graph coloring on quantum annealers
- Multipartite entanglement transfer in spin chains
- Robust and efficient transport of two-qubit entanglement via disordered spin chains
- Localization properties and high-fidelity state transfer in electronic hopping models with correlated disorder
- Entangled States are Harder to Transfer than Product States
- Generation and distribution of atomic entanglement in coupled-cavity arrays
- Quantum Corralling
- Localization properties of a two-channel 3D Anderson model