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arXiv 0704.0135quant-ph
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单囚禁离子的含时谐振子

A Single Trapped Ion as a Time-Dependent Harmonic Oscillator

Nicolas C. Menicucci, G. J. Milburn

摘要:

我们展示了如何一个单一的被困离子可能被用来测试各种重要的物理模型实现随时间变化的谐振子。离子本身通过激光诱导的电子跃迁充当其自身的运动检测器。Alsing等人[Phys. Rev. Lett. 94,220401(2005)]提出,可以用指数衰减的陷阱频率来模拟膨胀宇宙中的(热)吉本斯-霍金辐射,但所用的哈密顿量是不正确的。我们应用我们的一般解决方案,这个实验的建议,纠正了一个单一的离子的结果,并表明,虽然实际的光谱是从吉布斯-霍金的情况不同,但它仍然与这个结果共享一个重要的实验签名。

英文摘要:

We show how a single trapped ion may be used to test a variety of important physical models realized as time-dependent harmonic oscillators. The ion itself functions as its own motional detector through laser-induced electronic transitions. Alsing et al. [Phys. Rev. Lett. 94, 220401 (2005)] proposed that an exponentially decaying trap frequency could be used to simulate (thermal) Gibbons-Hawking radiation in an expanding universe, but the Hamiltonian used was incorrect. We apply our general solution to this experimental proposal, correcting the result for a single ion and showing that while the actual spectrum is different from the Gibbons-Hawking case, it nevertheless shares an important experimental signature with this result.

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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