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arXiv 1908.11006quant-ph
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含时量子谐振子的有效代数解

Efficient algebraic solution for a time-dependent quantum harmonic oscillator

D. M. Tibaduiza, L. B. Pires, D. Szilard, A. L. C. Rego, C. A. D. Zarro, C. Farina

摘要:

利用基于su(1,1)李代数的BCH类关系的算符序技术和时间分裂方法,我们提出了一种求解含时量子谐振子动力学的方法.我们找到了一个简单的递归关系,非常适合于数值计算的迭代解析解。我们使用我们的解决方案来重现和分析文献中的一些结果,以证明该方法的有用性,并在这些参考文献的基础上,我们讨论了压缩效率,当比较参数共振调制和Janszky-Adam计划。

英文摘要:

Using operator ordering techniques based on BCH-like relations of the su(1,1) Lie algebra and a time-splitting approach,we present an alternative method of solving the dynamics of a time-dependent quantum harmonic oscillator for any initial state. We find an iterative analytical solution given by simple recurrence relations that are very well suited for numerical calculations. We use our solution to reproduce and analyse some results from literature in order to prove the usefulness of the method and, based on these references, we discuss efficiency in squeezing, when comparing the parametric resonance modulation and the Janszky-Adam scheme.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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