Noncompeting Channel Approach to Pair Creation in Supercritical Fields
Noncompeting Channel Approach to Pair Creation in Supercritical Fields
复制标题
超临界场中配对创建的非竞争通道方法
DOI：
10.1103/physrevlett.111.183204
复制
发表时间：
2013
影响因子：
8.6
通讯作者：
Su Q.
中科院分区：
文献类型：
--
作者：
Lv Q. Z.;Liu Y.;Li Y. J.;Grobe R.;Su Q.
在时空网格上求解Dirac方程和Klein-Gordon方程，研究真空中玻色子和费米子的强场诱导对生成过程。如果外场足够强，可以诱导嵌入在负能量连续体中的束缚态，则哈密顿量的复杂标度技术可以预测动力学的长期行为。在多个边界状态的情况下，该技术预测了一个新的集体时间尺度的出现。对创建的长期行为不是由单个（最重要的）通道决定的，而是由嵌入状态的所有单个宽度的总和共同决定的。
The Dirac and Klein-Gordon equations are solved on a space-time grid to study the strong-field induced pair creation process for bosons and fermions from the vacuum. If the external field is sufficiently strong to induce bound states that are embedded in the negative energy continuum, a complex scaling technique of the Hamiltonian can predict the longtime behavior of the dynamics. In the case of multiple bound states this technique predicts the occurrence of a new collective time scale. The longtime behavior of the pair creation is not determined by a single (most important) channel, but collectively by the sum of all individual widths of the embedded states.