Observation of Exploding Electron Bubbles in Liquid Helium.
Observation of Exploding Electron Bubbles in Liquid Helium.
复制标题
液氦中电子泡爆炸的观察。
作者：
Classen;Su;Maris
当电子进入液氦时，它的斥力约为1ev。其结果是，在能量上有利于电子定位于一个几乎完全排除氦的球形体积内。作为第一个近似，我们可以认为能量E是电子的零点能量、气泡的表面能和与施加压力P成正比的体积能的总和，即：
When an electron enters liquid helium, it experiences a repulsive potential V0 of approximately 1 eV [1]. As a consequence it is energetically favorable for the electron to become localized within a spherical volume from which the helium is nearly completely excluded [2]. As a first approximation one can consider that the energy E is the sum of the zero-point energy of the electron, the surface energy of the bubble, and a volume energy proportional to the applied pressure P, i.e.,