Weak-Light, Zero to -\pi Lossless Kerr-Phase Gate in Quantum-well System via Tunneling Interference Effect
Optics
2015-07-08 v1 Quantum Physics
Abstract
We examine a Kerr phase gate in a semiconductor quantum well structure based on the tunnelling interference effect. We show that there exist a specific signal field detuning, at which the absorption/amplification of the probe field will be eliminated with the increase of the tunnelling interference. Simultaneously, the probe field will acquire a -\pi phase shift at the exit of the medium. We demonstrate with numerical simulations that a complete 180^\circ phase rotation for the probe field at the exit of the medium is achieved, which may result in many applications in information science and telecommunication.
Cite
@article{arxiv.1504.08048,
title = {Weak-Light, Zero to -\pi Lossless Kerr-Phase Gate in Quantum-well System via Tunneling Interference Effect},
author = {Y. L. Shi and Y. C. Huang and J. X. Wu and C. J. Zhu and J. P. Xu and Y. P. Yang},
journal= {arXiv preprint arXiv:1504.08048},
year = {2015}
}