论文标题

与环境的电子相互作用在隧道电离中

Electron interaction with the environment in tunnel ionization

论文作者

Lozano-Gómez, D., Kelkar, N. G.

论文摘要

电子在由外部电场形成的潜在屏障和氦原子的潜在的潜在屏障中的平均停留时间进行了评估。隧道电子被认为与氦离子中电子筛选的核电相互作用。发现筛选导致隧道电子的平均居住时间较小。在涉及速度依赖性摩擦力的半经典模型中考虑了环境对隧道电子的耗散作用,并发现会大大改变平均居住时间。

The average dwell time of an electron in a potential barrier formed by an external electric field and the potential of a helium atom is evaluated within a semi classical one-dimensional tunneling approach. The tunneling electron is considered to interact with a nuclear charge screened by the electron in the helium ion. It is found that screening leads to smaller average dwell times of the tunneling electron. The dissipative effect of the environment on the tunneling electron is taken into account within a semiclassical model involving a velocity dependent frictional force and is found to change the average dwell time significantly.

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