State transfer analysis for linear spin chains with non-uniform on-site energies

2025/07/17 by Chad C. Nelmes, Nelmes, Chad C., Irene D’Amico +3 · 1 citation
Computer Science · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Neural Networks and Reservoir Computing #Other Condensed Matter (cond-mat.other) #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.2507.13261

openalex publication_date 2025/07/17 · openalex created_date 2025/10/18 · openalex updated_date 2026/07/31

Abstract

High fidelity state transfer is an important ingredient of distributed quantum information processing. We present and analyse results on perfect and quasi-perfect state transfer with linear spin chains incorporating non-uniform on-site energies. The motivation is maintenance of coupling uniformity, which could be beneficial for some physical implementations. We relate this coupling uniformity to a particle in a discrete potential analogue. Our analysis further considers the statistical variation in couplings and on-site energies, as a function of increasing chain site number N.

Citations

• Quantum state transfer performance of Heisenberg spin chains with site-dependent interactions designed using a generic genetic algorithm
• A tweezer array with 6100 highly coherent atomic qubits
• Quantum Computing in the NISQ era and beyond
• State Transfer on Graphs
• Perfect transfer of arbitrary states in quantum spin networks
• Mirror Inversion of Quantum States in Linear Registers
• Electron wavepacket propagation in a chain of coupled quantum dots
• Jordan-Wigner fermionization for spin-1/2 systems in two dimensions: A brief review
• Josephson-junction qubits with controlled couplings

Cited by

• Fast and efficient long-distance quantum state transfer in long-range spin-(1)/(2) models

Related

• Spectral surgery and high-fidelity quantum state transfer in XX chains
• Encoded State Transfer: Beyond the Uniform Chain
• Quantum State Transfer with Spin Chains
• Pretty Good State Transfer of Multiple Qubit States on Paths
• Quantum state transfer performance of Heisenberg spin chains with site-dependent interactions designed using a generic genetic algorithm