Universal quantum computer from a quantum magnet
Quantum Physics
2016-08-14 v2 Strongly Correlated Electrons
Abstract
We show that a local Hamiltonian of spin-3/2 particles with only two-body nearest-neighbor Affleck-Kennedy-Lieb-Tasaki and exchange-type interactions has an unique ground state, which can be used to implement universal quantum computation merely with single-spin measurements. We prove that the Hamiltonian is gapped, independent of the system size. Our result provides a further step towards utilizing systems with condensed matter-type interactions for measurement-based quantum computation.
Cite
@article{arxiv.1004.1907,
title = {Universal quantum computer from a quantum magnet},
author = {Jianming Cai and Akimasa Miyake and Wolfgang Dür and Hans J. Briegel},
journal= {arXiv preprint arXiv:1004.1907},
year = {2016}
}
Comments
5 pages, 3 figures