Quantum information processing and multiatom entanglement engineering with a thermal cavity
Quantum Physics
2012-02-27 v1 Optics
Abstract
We propose a scheme for realizing two-qubit quantum phase gates with atoms in a thermal cavity. The photon-number dependent parts in the evolution operator are canceled with the assistant of a strong classical field. Thus the scheme is insensitive to the thermal field. In the scheme the detuning between the atoms and the cavity is equal to the atom-cavity coupling strength and thus the gates operate at a high speed, which is also important in view of decoherence. The scheme can be generalized to generate multiatom entangled states with a thermal cavity.
Cite
@article{arxiv.1202.5382,
title = {Quantum information processing and multiatom entanglement engineering with a thermal cavity},
author = {Shi-Biao Zheng},
journal= {arXiv preprint arXiv:1202.5382},
year = {2012}
}