Creation and manipulation of entanglement in spin chains far from equilibrium

Abstract

We investigate creation, manipulation, and steering of entanglement in spin chains from the viewpoint of quantum communication between distant parties. We demonstrate how global parametric driving of the spin-spin coupling and/or local time-dependent Zeeman fields produce a large amount of entanglement between the first and the last spin of the chain. This occurs whenever the driving frequency meets a resonance condition, identified as "entanglement resonance". Our approach marks a promising step towards an efficient quantum state transfer or teleportation in solid state system. Following the reasoning of Zueco et al. [1], we propose generation and routing of multipartite entangled states by use of symmetric tree-like structures of spin chains. Furthermore, we study the effect of decoherence on the resulting spin entanglement between the corresponding terminal spins.

10 pages, 8 figures

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Cited by in corpus (7)

• Chopped random-basis quantum optimization
• Spin-chain model of a many-body quantum battery
• Adiabatic quantum state transfer in tight-binding chains using periodic driving fields
• Generation and stabilization of Bell states via repeated projective measurements on a driven ancilla qubit
• Fast generation of entanglement between coupled spins using optimization and deep learning methods
• Correlation transfer in large-spin chains
• Comparative analysis of robust entanglement generation in engineered XX spin chains