Gauge invariance of the strong field approximation
A. BechlerM. Ślȩczka
所有作者
A. BechlerM. Ślȩczka
文献摘要
It is shown that strong field approximation (SFA) can be formulated in a
gauge invariant manner order by order of the expansion with no need for various
partitions of the Hamiltonian in different gauges.