摘要翻译:
我们提出了一种新的微观方法,可以研究微波在碱原子玻色-爱因斯坦凝聚体中的传播特性。假设信号频率被调谐到这类原子的超精细基态能级之间的跃迁。发现了脉冲慢化条件与系统参数的依赖关系。结果表明,慢化信号可以在系统中以较小的能量损失传播。在超精细能级塞曼分裂的情况下也研究了这种现象。讨论了在铯原子凝聚气体中观测超慢微波的可能性。
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英文标题:
《Theoretical background for observing ultra-slow microwaves in a
Bose-Einstein condensate of alkali atoms》
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作者:
Yuriy V. Slyusarenko and Andrey G. Sotnikov
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics 物理学
二级分类:Other Condensed Matter 其他凝聚态物质
分类描述:Work in condensed matter that does not fit into the other cond-mat classifications
在不适合其他cond-mat分类的凝聚态物质中工作
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英文摘要:
We represent a new microscopic approach that allows studying the propagation properties of microwaves in a Bose-Einstein condensate of alkali atoms. It is assumed that the frequency of signal is tuned up to the transition between hyperfine ground state levels of such atoms. Pulse slowing conditions dependence on the system parameters is found. It is shown that the slowed signal can propagate in mentioned system with rather small energy loss. Such phenomenon is also studied in case of hyperfine levels Zeeman splitting. A possibility of ultra-slow microwaves observing in a condensed gas of cesium atoms is discussed.
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PDF链接:
https://arxiv.org/pdf/706.328