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تسجيل مستخدم جديدWeak-Light, Zero to -pi Lossless Kerr-Phase Gate in Quantum-well System via Tunneling Interference Effect
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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.
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