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arXiv 0912.4582quant-ph
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关于非线性玻色相干态

On Nonlinear Bosonic Coherent States

Marco Genovese, Francesco A. Raffa, Mario Rasetti

摘要:

非线性相干态是量子技术的一个有趣的资源。在这里,我们研究的单玻色子非线性相干态的一些关键特性,这是理论上构造的湮没算符的本征态和实验上实现的囚禁激光驱动离子的定态。我们表明,这种状态的相干性和最小的不确定性属性被打破的Lamb-Dicke参数的值对应的拉盖尔多项式的根,进入其明确的表达。对多玻色子非线性相干态的情况也进行了讨论。

英文摘要:

Nonlinear coherent states are an interesting resource for quantum technologies. Here we investigate some critical features of the single-boson nonlinear coherent states, which are theoretically constructed as eigenstates of the annihilation operator and experimentally realized as stationary states of a trapped laser-driven ion. We show that the coherence and the minimum-uncertainty properties of such states are broken for values of the Lamb-Dicke parameter corresponding to the roots of the Laguerre polynomials, which enter their explicit expression. The case of the multiboson nonlinear coherent states is also discussed.

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