Physics – Optics
Scientific paper
2012-01-17
Physics
Optics
7 pages, 5 figures
Scientific paper
We present a realization of two-qubit controlled-phase gate, based on the linear and nonlinear properties of the probe and signal optical pulses in an asymmetric GaAs/AlGaAs double quantum wells. It is shown that, in the presence of cross-phase modulation, a giant cross-Kerr nonlinearity and mutually matched group velocities of the probe and signal optical pulses can be achieved while realizing the suppression of linear and self-Kerr optical absorption synchronously. These characteristics serve to exhibit an all-optical two-qubit controlled-phase gate within efficiently controllable photon-photon entanglement by semiconductor mediation. In addition, by using just polarizing beam splitters and half-wave plates, we propose a practical experimental scheme to discriminate the maximally entangled polarization state of two-qubit through distinguishing two out of the four Bell states. This proposal potentially enables the realization of solid states mediated all-optical quantum computation and information processing.
Fan Haifeng
Liu Wei-Min
Luo X. Q.
Wang Dan-Ling
No associations
LandOfFree
The two-qubit controlled-phase gate based on cross-phase modulation in GaAs/AlGaAs semiconductor quantum wells does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The two-qubit controlled-phase gate based on cross-phase modulation in GaAs/AlGaAs semiconductor quantum wells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The two-qubit controlled-phase gate based on cross-phase modulation in GaAs/AlGaAs semiconductor quantum wells will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-96727