Fast state transfer via loop weights
Abstract
We prove that almost-linear-time high-fidelity state transfer is achievable in a quantum spin chain using loop weights at the second and second-to-last nodes. We provide specific parameter values, and using a careful analysis of the eigenvectors we make precise quantitative estimates of the transfer time and strength.
Fields of Study & Subjects
Quantum Information and Cryptography
Quantum many-body systems
Quantum Computing Algorithms and Architecture
Publication details
- Journal / source
- arXiv (Cornell University)
- Publication date
- 28 January 2026
- Document type
- Preprint