玻璃箱中一维垂直尘埃弦
One-dimensional vertical dust strings in a glass box
摘要：
研究了GEC参比池中下电极顶部玻璃盒内形成的一维垂直尘埃弦的振荡谱。描述了一种用于产生单个竖直粉尘串的机构。结果表明，振动振幅，共振频率，阻尼系数和振动相位的尘埃粒子分为两个不同的群体。一组表现出较低的阻尼系数，增加振幅和降低共振频率的尘埃粒子更接近下电极。另一组显示出高阻尼系数，但异常的共振频率和振幅。在低振荡频率下，两组也被π相位差分开。两组之间的行为差异的一个可能的原因进行了讨论。
英文摘要：
The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a GEC reference cell was studied. A mechanism for creating a single vertical dust string is described. It is shown that the oscillation amplitudes, resonance frequencies, damping coefficients, and oscillation phases of the dust particles separate into two distinct groups. One group exhibits low damping coefficients, increasing amplitudes and decreasing resonance frequencies for dust particles closer to the lower electrode. The other group shows high damping coefficients but anomalous resonance frequencies and amplitudes. At low oscillation frequencies, the two groups are also separated by a π-phase difference. One possible cause for the difference in behavior between the two groups is discussed.
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