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61.
The asymmetric photoionization of atoms irradiated by intense,
few-cycle laser pulses is studied numerically. The results show that
the pulse intensity affects the asymmetric photoionization in three
aspects. First, at higher intensities, the asymmetry becomes
distinctive for few-cycle pulses of longer durations. Second, as the
laser intensity increases, the maximal asymmetry first decreases
then increases after it has reached a minimal value. Last, the value
of the carrier-envelope phase corresponding to the maximal asymmetry
varies with the pulse intensity. This study reveals that the
increasing of pulse intensity is helpful for observing the
asymmetric photoionization. 相似文献
62.
63.
研究了 KdV-Burgers-Kuramoto 方程的渐近吸引子,即利用正交分解法构造一个有限维解序列。首先用数学归纳法证明了该解序列不会远离方程的整体吸引子,接着证明解序列在长时间后无限趋于方程的整体吸引子,最后给出渐近吸引子的维数估计。 相似文献
64.
研究了一类非线性梁方程的渐近吸引子.即利用正交分解法构造一个有限维解序列.首先用数学归纳法证明了该解序列不会远离方程的整体吸引子,其次证明了它在长时间后无限趋于方程的整体吸引子,并给出了渐近吸引子的维数估计. 相似文献