Optimal dynamics for quantum-state and entanglement transfer through homogeneous quantum wires

Abstract

It is shown that effective quantum-state and entanglement transfer can be obtained by inducing a coherent dynamics in quantum wires with homogeneous intrawire interactions. This goal is accomplished by tuning the coupling between the wire endpoints and the two qubits there attached, to an optimal value. A general procedure to determine such value is devised, and scaling laws between the optimal coupling and the length of the wire are found. The procedure is implemented in the case of a wire consisting of a spin-1/2 XY chain: results for the time dependence of the quantities which characterize quantum-state and entanglement transfer are found of extremely good quality and almost independent of the wire length. The present approach does not require `ad hoc' engineering of the intrawire interactions nor a specific initial pulse shaping, and can be applied to a vast class of quantum channels.

5 pages, 5 figures

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Cited by in corpus (76)

• Robust Quantum State Transfer in Random Unpolarized Spin Chains
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• Memory-keeping effects and forgetfulness in the dynamics of a qubit coupled to a spin chain
• 99%-fidelity ballistic quantum-state transfer through long uniform channels
• Robustness of spin-coupling distributions for perfect quantum state transfer
• Long quantum channels for high-quality entanglement transfer
• Quantum-state transfer via resonant tunnelling through local field induced barriers
• Non-equilibrium phase transition in a periodically driven XY spin chain
• Photonic Simulation of Entanglement Growth After a Spin Chain Quench
• Spin chains for robust state transfer: Modified boundary couplings vs. completely engineered chains
• Fast and robust quantum state transfer via a topological chain
• Propagation of non-classical correlations across a quantum spin chain
• Transfer of arbitrary two qubit states via a spin chain
• Optimized dynamical control of state transfer through noisy spin chains
• Experimental characterization of coherent magnetization transport in a one-dimensional spin system
• Quantum Logic between Remote Quantum Registers
• Transport of Quantum Correlations across a spin chain
• Initializing an unmodulated spin chain to operate as a high quality quantum data-bus
• Arbitrary perfect state transfer in $d$-level spin chains
• Quantum state transfer in a disordered one-dimensional lattice
• Robust state transfer with high fidelity in spin-1/2 chains by Lyapunov control
• Perfect State Transfer in Two and Three Dimensional Structures
• Disorder-assisted distribution of entanglement in $XY$ spin chains
• High-fidelity state transfer through long-range correlated disordered quantum channels
• Spectra of Perfect State Transfer Hamiltonians on Fractal-Like Graphs
• Dimensionality-enhanced quantum state transfer in long-range interacting spin systems
• Many-qubit quantum state transfer via spin chains
• Using the J1-J2 Quantum Spin Chain as an Adiabatic Quantum Data Bus
• Measurement-Assisted Quantum Communication in Spin Channels with Dephasing
• Simulation of mirror inversion of quantum states in an XY spin chain using NMR
• Interplay between speed and fidelity in off-resonant quantum-state transfer protocols
• Controlled quantum state transfer in $XX$ spin chains at the Quantum Speed Limit
• Fast and robust magnon transport in a spin chain
• Almost perfect transport of an entangled two-qubit state through a spin chain
• Ballistic quantum state transfer in spin chains: general theory for quasi-free models and arbitrary initial states
• Optimal Quench for Distance-Independent Entanglement and Maximal Block Entropy
• Pretty good quantum state transfer on isotropic and anisotropic Heisenberg spin chains with tailored site dependent exchange couplings
• Vibrational exciton-mediated quantum state transfert: a simple model
• Combatting the Effects of Disorder in Quantum State Transfer
• Analysis and minimization of bending losses in discrete quantum networks
• Chiral quantum router with Rydberg atoms
• Almost perfect transmission of multipartite entanglement through disordered and noisy spin chains
• Photon-assisted quantum state transfer and entanglement generation in spin chains
• Optimized quantum state transfer through an XY spin chain
• Robustness of spin-chain state-transfer schemes
• Evaluation of the performance of two state-transfer Hamiltonians in the presence of static disorder
• High-dimensional quantum state transfer in a noisy network environment
• Understanding the propagation of excitations in quantum spin chains with different kind of interactions
• Partial structural restoring of two-qubit transferred state
• Localization properties and high-fidelity state transfer in electronic hopping models with correlated disorder
• Robust and efficient transport of two-qubit entanglement via disordered spin chains
• Scalable universal holonomic quantum computation realized with an adiabatic quantum data bus and potential implementation using superconducting flux qubits
• Remote two-qubit state creation and its robustness
• Transferring entangled states through spin chains by boundary-state multiplets
• General Quantum State Swap: an XY model analysis
• Quench Induced Growth of Distant Entanglement from Product and Locally Entangled States in Spin Chains
• State-Transfer Simulation in Integrated Waveguide Circuits
• Flat-band quantum communication induced by disorder
• Entanglement transfer via Chiral Quantum Walk on a Triangular Chain
• Duplex quantum communication through a spin chain
• Robust and Fast Quantum State Transfer on Superconducting Circuits
• Exact generation of quantum states by the dynamics of spin chains
• Unitary Design of Quantum Spin Networks for Robust Routing, Entanglement Generation, and Phase Sensing
• Quantum Corralling
• Noise effects in perfect transmission of quantum states
• High-fidelity state transfer via quantum walks from delocalized states
• Spin dynamics in finite cyclic XY model
• Two-channel spin-chain communication line and simple quantum gates
• Entanglement Transfer in a Composite Electron-Ion-Photon System
• Scalable Quantum Spin Networks from Unitary Construction
• Preparation of edge states by shaking boundaries
• Perfect transfer of arbitrary continuous variable states across optical waveguide lattices
• Quantum teleportation by utilizing helical spin chains for sharing entanglement
• State transfer analysis for linear spin chains with non-uniform on-site energies
• Incorporating Encoding into Quantum System Design
• Exact solution of a family of staggered Heisenberg chains with conclusive pretty good quantum state transfer