Multiuser quantum communication networks

Abstract

We study a quantum state transfer between spins interacting with an arbitrary network of spins coupled by uniform XX interactions. It is shown that in such a system under fairly general conditions, we can expect a nearly perfect transfer of states. Then we analyze a generalization of this model to the case of many network users, where the sender can choose which party he wants to communicate with by appropriately tuning his local magnetic field. We also remark that a similar idea can be used to create an entanglement between several spins coupled to the network.

5 pages, 5 figures

References in corpus (10)

• Perfect Transfer of Arbitrary States in Quantum Spin Networks
• Unmodulated spin chains as universal quantum wires
• The Propagation of Quantum Information Through a Spin System
• Perfect quantum state transfer with randomly coupled quantum chains
• Perfect State Transfer: Beyond Nearest-Neighbor Couplings
• Quantum state transmission via a spin ladder as a robust data bus
• From perfect to fractal transmission in spin chains
• Excitation and Entanglement Transfer Versus Spectral Gap
• Entanglement generation in harmonic chains: tagging by squeezing
• Entanglement creation and distribution on a graph of exchange-coupled qutrits

Cited by in corpus (48)

• Quantum Communication through Spin Chain Dynamics: an Introductory Overview
• Perfect Quantum Routing in Regular Spin Networks
• Routing quantum information in spin chains
• Perfect state transfer and efficient quantum routing: a discrete-time quantum walk approach
• Quantum-state transfer via resonant tunnelling through local field induced barriers
• The Basics of Perfect Communication through Quantum Networks
• Discrete Time Quantum Walk Approach to State Transfer
• Optimally designed quantum transport across disordered networks
• Optimized dynamical control of state transfer through noisy spin chains
• Heisenberg Spin Bus as a Robust Transmission Line for Perfect State Transfer
• Complex Quantum Networks: a Topical Review
• Protected quantum-state transfer in decoherence-free subspaces
• Exploiting boundary states of imperfect spin chains for high-fidelity state transfer
• Parallel State Transfer and Efficient Quantum Routing on Quantum Networks
• Arbitrary perfect state transfer in $d$-level spin chains
• Robust state transfer with high fidelity in spin-1/2 chains by Lyapunov control
• Quantum-state transfer in spin chains via isolated resonance of terminal spins
• Qubit state transfer via discrete-time quantum walks
• Disorder-assisted distribution of entanglement in $XY$ spin chains
• Iterative quantum state transfer along a chain of nuclear spin qubits
• High-fidelity state transfer through long-range correlated disordered quantum channels
• Analytical solution of open crystalline linear 1D tight-binding models
• Measurement-Assisted Quantum Communication in Spin Channels with Dephasing
• Interplay between speed and fidelity in off-resonant quantum-state transfer protocols
• Perfect quantum transport in arbitrary spin networks
• A coherent router for quantum networks
• Quantum state transfer in the presence of non homogeneous external potentials
• Ballistic quantum state transfer in spin chains: general theory for quasi-free models and arbitrary initial states
• Communication in quantum networks of logical bus topology
• Combatting the Effects of Disorder in Quantum State Transfer
• Disorder-safe entanglement transfer through ladder qubit chains
• Entanglement generation between distant parties via disordered spin chains
• Photon-assisted quantum state transfer and entanglement generation in spin chains
• Multipartite entanglement transfer in spin chains
• Localization properties and high-fidelity state transfer in electronic hopping models with correlated disorder
• Quasi-perfect state transfer in a bosonic dissipative network
• The scattering coefficients of superconducting microwave resonators: II. System-bath approach
• Low-Dissipation Data Bus via Coherent Quantum Dynamics
• Perfect state transfer on hypercubes and its implementation using superconducting qubits
• Flat-band quantum communication induced by disorder
• An impurity-induced gap system as a quantum data bus for quantum state transfer
• Surface Entanglement in Quantum Spin Networks
• Quantum Multiplexing for Quantum Computer Networks
• Transfer of high-dimensional quantum state through an XXZ-Heisenberg quantum spin chain
• Tuning and Amplifying the Interactions in Superconducting Quantum Circuits with Subradiant Qubits
• Local models and Bell inequalities for the minimal triangle network
• State Transfer in Noisy Modular Quantum Networks
• Transfer and routing of Gaussian states through quantum complex networks with and without community structure