Remote spin control in Haldane spin chains

2025/08/29 by del Castillo, Y., Ferrón, A., Fernández-Rossier, J. · 1 citation
#FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

paper · doi:10.48550/arxiv.2508.21544

Abstract

We consider the remote manipulation of the quantum state of the edge fractional spins of Haldane spin chains using a weak local perturbation on the other edge. We derive an effective four-level model that correctly captures the response of the local magnetization to local perturbations and we use it to show that applying a small local field on one edge of the chain induces a strong variation of the magnetization on the opposite edge. Using a Landau-Zener protocol, we show how local control of the field on one edge of the chain, implemented for instance with a spin-polarized scanning tunnel microscope tip, can adiabatically switch the magnetization direction on the other side of the chain.

Citations

• Spin-1 Haldane phase in a chain of Rydberg atoms
• Quantum State Transfer in a Magnetic Atoms Chain Using a Scanning Tunneling Microscope
• Noise Correlations in a 1D Silicon Spin Qubit Array
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• Construction of topological quantum magnets from atomic spins on surfaces
• Tunable topological phases in nanographene-based spin-1/2 alternating-exchange Heisenberg chains
• Local dynamics and detection of topology in spin-1 chains
• Superexchange coupling of donor qubits in silicon
• Electric-field-driven spin resonance by on-surface exchange coupling to a single-atom magnet
• The ITensor Software Library for Tensor Network Calculations
• Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma model

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• Identification and optimization of accurate spin models for Fermi-Hubbard ladders using matrix product states

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