Abstract

The cross-Kerr nonlinearity arising between two far-infrared (FIR) pulses is investigated in a three-coupled-quantum-well (TCQW) structure based on intersubband transitions. The results show that the giant Kerr nonlinearity with a relatively large cross-phase-modulation phase shift can be used for realizing polarization quantum phase gate in this TCQW structure. Such a semiconductor system is much more practical than its atomic counterpart because of its flexible design and the wide tunable parameters. This protocol may have potential applications in FIR all-optical switch design and quantum information processing with solid-state materials.

© 2010 Optical Society of America

Controllable entanglement and polarization phase gate in coupled double quantum-well structures

Wen-Xing Yang and Ray-Kuang Lee
Opt. Express 16(22) 17161-17170 (2008)

Fifth-order nonlinearity and 3-qubit phase gate in a five-level tripod atomic system

Pengbo Li, Ying Gu, Lijun Wang, and Qihuang Gong
J. Opt. Soc. Am. B 25(4) 504-512 (2008)

Giant Kerr Nonlinearity, Controlled Entangled Photons and Polarization Phase Gates in Coupled Quantum-Well Structures

Chengjie Zhu and Guoxiang Huang
Opt. Express 19(23) 23364-23376 (2011)

Uniform cross-phase modulation for nonclassical radiation pulses

Karl-Peter Marzlin, Zeng-Bin Wang, Sergey A. Moiseev, and Barry C. Sanders
J. Opt. Soc. Am. B 27(6) A36-A45 (2010)

Strongly interacting photons in asymmetric quantum well via resonant tunneling

H. Sun, S. L. Fan, X. L. Feng, C. F. Wu, S. Q. Gong, G. X. Huang, and C. H. Oh
Opt. Express 20(8) 8485-8495 (2012)