V. I. Yudin, O. N. Prudnikov, A. V. Taichenachev, M. Yu. Basalaev, V. G. Pal’chikov, S. N. Bagayev
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引用次数: 0
摘要
我们超越旋转波近似,发展了在长寿命原子水平上与泽曼结构相互作用的射频脉冲复合拉姆齐序列理论。Shaniv, R. Ozeri, M.S. Safronova, S.G. Porsev, V.A. Dzuba, V.V. Flambaum, and H. Häffner, Phys.120, 103202 (2018)].基于傅立叶分析,我们已经证明,当拉姆齐脉冲的数量超过几十个时,考虑非共振贡献会导致量子系统的动力学发生根本变化(相对于旋转波近似)。因此,使用这种射频脉冲序列来测试局部洛伦兹不变性的有效性尚未完全确定,需要进行更多的研究。
Theory of Composite Ramsey Sequences of Radiofrequency Pulses beyond the Rotating Wave Approximation
We develop a theory of composite Ramsey sequences of rf pulses interacting with the Zeeman structure at the long-lived atomic level, beyond the rotating wave approximation. Such sequences are proposed in experiments to detect the violation of local Lorentz invariance [R. Shaniv, R. Ozeri, M.S. Safronova, S.G. Porsev, V.A. Dzuba, V.V. Flambaum, and H. Häffner, Phys. Rev. Lett. 120, 103202 (2018)]. Based on Fourier analysis, we have shown that taking into account non-resonant contributions leads to a radical change in the dynamics of the quantum system (with respect to the rotating wave approximation) in the case when the number of Ramsey pulses exceeds several tens. As a result, the effectiveness of using such rf pulses sequences to test local Lorentz invariance has not yet been fully determined and requires additional research.
期刊介绍:
All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.