TY - JFULL AU - Shi Chen and Zi Y. Chen and Jian K. Dan and Jian F. Li PY - 2011/5/ TI - Nonlinear Evolution of Electron Density Under High-Energy-Density Conditions T2 - International Journal of Physical and Mathematical Sciences SP - 556 EP - 560 VL - 5 SN - 1307-6892 UR - https://publications.waset.org/pdf/12924 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 52, 2011 N2 - Evolution of one-dimensional electron system under high-energy-density (HED) conditions is investigated, using the principle of least-action and variational method. In a single-mode modulation model, the amplitude and spatial wavelength of the modulation are chosen to be general coordinates. Equations of motion are derived by considering energy conservation and force balance. Numerical results show that under HED conditions, electron density modulation could exist. Time dependences of amplitude and wavelength are both positively related to the rate of energy input. Besides, initial loading speed has a significant effect on modulation amplitude, while wavelength relies more on loading duration. ER -