Remote quantum gates mediated by spin chains
Quantum Physics
2010-03-10 v2
Abstract
There has been much recent study on the application of spin chains to quantum state transfer and communication. Here we demonstrate that spin chains set up for perfect quantum state transfer can be utilised to generate remote quantum gates, between spin qubits injected at the ends of the chain. The natural evolution of the system across different excitation number sectors generates a maximally-entangling and universal gate between the injected qubits, independent of the length of the chain.
Cite
@article{arxiv.1003.0869,
title = {Remote quantum gates mediated by spin chains},
author = {R. Ronke and I. D'Amico and T. P. Spiller},
journal= {arXiv preprint arXiv:1003.0869},
year = {2010}
}
Comments
The paper has been withdrawn by the author.