power-series expansion method

基本解释

The power series expansion method is utilized to study the collective behavior in dusty plasma consisting of cold dust particles and two-temperature isothermal ions.
用幂级数展开法研究了具有两种温度绝热离子的冷尘埃等离子体体系的集体行为。
It is found that the short-time propagators obtained by using the above two methods are nearly equal, but using power series expansion technique is much easier than Schwinger method.
研究表明，这两种方法所获得的短时传播子非常接近，但是后者比前者要简单得多，这给研究复杂系统的传播子提供了一个简单可靠的方法。
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