Coulomb impurities in graphene driven by ultrashort electromagnetic pulses: Excitation, ionization, and pair creation
arxiv(2023)
摘要
We provide a theory for electronic transitions induced by ultrashort
electromagnetic pulses in two-dimensional artificial relativistic atoms which
are created by a charged impurity in a gapped graphene monolayer. Using a
non-perturbative sudden-perturbation approximation, we derive and discuss
analytical expressions for the probabilities for excitation, ionization and
electron-hole pair creation in this system.
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