Entanglement and Quantum Phase Transitions via Adiabatic Quantum Computation
量子物理
2010-07-26 v2
摘要
For a finite XY chain and a finite two-dimensional Ising lattice, it is shown that the paramagnetic ground state is adiabatically transformed to the GHZ state in the ferromagnetic phase by slowly turning on the magnetic field. The fidelity between the GHZ state and an adiabatically evolved state shows a feature of the quantum phase transition.
引用
@article{arxiv.quant-ph/0701096,
title = {Entanglement and Quantum Phase Transitions via Adiabatic Quantum Computation},
author = {Sangchul Oh},
journal= {arXiv preprint arXiv:quant-ph/0701096},
year = {2010}
}
备注
Revised