Xu, Qing Hu, Xiangming Phase dependence of the variance 〈(δ<em>X</em><sub>+</sub>)<sup>2</sup>〉 for <em>s</em> = 5, <em>q</em> = (0, 0.2, 0.5, 1, 5, 10) <p><strong>Figure 7.</strong> Phase dependence of the variance 〈(δ<em>X</em><sub>+</sub>)<sup>2</sup>〉 for <em>s</em> = 5, <em>q</em> = (0, 0.2, 0.5, 1, 5, 10). (a) Φ = 0 (the same as in figure <a href="http://iopscience.iop.org/0953-4075/46/18/185501/article#jpb474929f5" target="_blank">5</a>(d) and given for the sake of comparison), (b) \Phi =\pm \frac{\pi }{4}, (c) \Phi =\pm \frac{\pi }{2} and (d) Φ = π. Different from the case in figure <a href="http://iopscience.iop.org/0953-4075/46/18/185501/article#jpb474929f6" target="_blank">6</a>, the present case has squeezing and entanglement even when Φ = π.</p> <p><strong>Abstract</strong></p> <p>We show that it is possible to use an atom–cavity reservoir to prepare the two-mode squeezed and entangled states of a hybrid system of an atomic ensemble and an optical field, which do not directly interact with each other. The essential mechanism is based on the combined effect of a two-mode squeezing interaction and a beam–splitter interaction between the system and the reservoir. The reservoir mechanism is important for quantum networking in that it allows an interface between a localized matter-based memory and an optical carrier of quantum information without direct interaction.</p> figure;quantum information;quantum networking;phi;frac;interaction;reservoir mechanism;pm;Atomic Physics;Molecular Physics 2013-09-05
    https://iop.figshare.com/articles/figure/_Phase_dependence_of_the_variance_em_X_em_sub_sub_sup_2_sup_for_em_s_em_5_em_q_em_0_0_2_0_5_1_5_10_/1012774
10.6084/m9.figshare.1012774.v1