Magic transfer in quantum spin chains
Abstract
Quantum communication protocols based on spin chains have been extensively studied, yet their ability to transmit nonstabilizer resources has not been systematically addressed. We investigate the transport of quantum magic in spin chains through the natural dynamics of systems initialized in nonstabilizer states, and quantify the transported resource via the stabilizer norm. We analyze three experimentally feasible state-transfer protocols, ranging from noisy to (quasi-)perfect transfer, including one realizable in trapped-ion platforms. We find that the geometry of the injected state strongly influences transport: states in the lower Bloch hemisphere achieve higher transfer quality, whereas states in the upper hemisphere give rise to an efficient magic transport only beyond a threshold value of the parameter controlling the tendency towards perfect transfer. These features are robust across all protocols and identify the Hamiltonian and state properties that favor high-quality transfer. Moreover, we identify a parameter region, relevant to the initial state preparation, in which the transported magic exceeds the initial encoding, indicating that such spin systems can act as magic-amplification channels. Our results establish the conditions for efficient transport of nonstabilizer resources and demonstrate quantum magic as a sensitive probe of quantum transport beyond population dynamics.
Versions
Related
- Long-Range Ergotropy Transfer with Weakened Boundary-Coupling Spin Chains
- Generating pairwise entanglement in periodically driven quantum spin chains with stochastic resetting
- Rapid mixing of quantum spin chains at any finite temperature
- Arithmetic of Bohr Frequencies Governs Uniform Mixing in Randomly Timed Quantum Spin Chains
- Mean-field theory for quantum spin chains
BibTeX
@misc{palamara2026magic,
title = {{Magic transfer in quantum spin chains}},
author = {Antonio Palamara and Chad Nelmes and Enrico C. Domanti and Francesco Perciavalle},
howpublished = {arXiv},
year = {2026},
month = jun,
doi = {10.48550/arxiv.2606.14855},
eprint = {2606.14855},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.14855},
}
RIS
TY - UNPB
TI - Magic transfer in quantum spin chains
AU - Antonio Palamara
AU - Chad Nelmes
AU - Enrico C. Domanti
AU - Francesco Perciavalle
PY - 2026
DA - 2026/06/12
PB - arXiv
DO - 10.48550/arxiv.2606.14855
UR - https://arxiv.org/abs/2606.14855
AB - Quantum communication protocols based on spin chains have been extensively studied, yet their ability to transmit nonstabilizer resources has not been systematically addressed. We investigate the transport of quantum magic in spin chains through the natural dynamics of systems initialized in nonstabilizer states, and quantify the transported resource via the stabilizer norm. We analyze three experimentally feasible state-transfer protocols, ranging from noisy to (quasi-)perfect transfer, including one realizable in trapped-ion platforms. We find that the geometry of the injected state strongly influences transport: states in the lower Bloch hemisphere achieve higher transfer quality, whereas states in the upper hemisphere give rise to an efficient magic transport only beyond a threshold value of the parameter controlling the tendency towards perfect transfer. These features are robust across all protocols and identify the Hamiltonian and state properties that favor high-quality transfer. Moreover, we identify a parameter region, relevant to the initial state preparation, in which the transported magic exceeds the initial encoding, indicating that such spin systems can act as magic-amplification channels. Our results establish the conditions for efficient transport of nonstabilizer resources and demonstrate quantum magic as a sensitive probe of quantum transport beyond population dynamics.
ER -