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arXiv · 1504.08048

Weak-Light, Zero to -πLossless Kerr-Phase Gate in Quantum-well System via Tunneling Interference Effect

Y. L. Shi·Y. C. Huang·J. X. Wu·C. J. Zhu·J. P. Xu·Y. P. Yang
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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 -πphase 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.

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Y. L. Shi, Y. C. Huang, J. X. Wu, C. J. Zhu, J. P. Xu, Y. P. Yang. 2015-04-29. Weak-Light, Zero to -πLossless Kerr-Phase Gate in Quantum-well System via Tunneling Interference Effect. https://doi.org/10.1103/physreva.91.063838

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