Abstract

A theoretical investigation is carried out into the cross phase modulation (XPM) in an asymmetric double AlGaAs/GaAs quantum wells structure with a common continuum. It is found that, combining resonant tunneling-induced transparency and constructive interference in the third-order Kerr effect, a giant XPM can be achieved with vanishing linear and nonlinear absorptions, accompanied by the velocities of the probe and signal fields being matched. Furthermore, this giant XPM could induce a \pi-phase shift at a single-photon level which is favorable for the applications in two-qubit quantum logic gates.

© 2009 Chinese Optics Letters

Tunneling-induced large cross-phase modulation in an asymmetric quantum well

Hui Sun, Yueping Niu, Ruxin Li, Shiqi Jin, and Shangqing Gong
Opt. Lett. 32(17) 2475-2477 (2007)

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)

Tunneling-induced optical bistability in an asymmetric double quantum well

Longlong Li, Hongjun Zhang, Hui Sun, Xionghui Hu, Wei Liu, and Xiaohong Yi
Appl. Opt. 55(11) 2980-2984 (2016)

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)

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)