Initialization and Readout of Spin Chains for Quantum Information Transport

Abstract

Linear chains of spins acting as quantum wires are a promising approach to achieve scalable quantum information processors. Nuclear spins in apatite crystals provide an ideal test-bed for the experimental study of quantum information transport, as they closely emulate a one-dimensional spin chain. Nuclear Magnetic Resonance techniques can be used to drive the spin chain dynamics and probe the accompanying transport mechanisms. Here we demonstrate initialization and readout capabilities in these spin chains, even in the absence of single-spin addressability. These control schemes enable preparing desired states for quantum information transport and probing their evolution under the transport Hamiltonian. We further optimize the control schemes by a detailed analysis of ${}^{19}$F NMR lineshape.

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Cited by in corpus (8)

• Finite-temperature transport in one-dimensional quantum lattice models
• Exploring Localization in Nuclear Spin Chains
• Quantum simulation via filtered Hamiltonian engineering: application to perfect quantum transport in spin networks
• Perturbatively-perfect many-body transfer
• Decay of spin coherences in one-dimensional spin systems
• Optimal Quench for Distance-Independent Entanglement and Maximal Block Entropy
• Statistics of a quantum-state-transfer Hamiltonian in the presence of disorder
• Emulating quantum state transfer through a spin-1 chain on a 1D lattice of superconducting qutrits