Parameter space investigation for spin-dependent electron diffraction in the Kapitza-Dirac effect
arxiv(2023)
摘要
We demonstrate that spin-dependent electron diffraction is possible for a
smooth range of transverse electron momenta in a two-photon Bragg scattering
scenario of the Kapitza-Dirac effect. Our analysis is rendered possible by
introducing a generalized specification for quantifying spin-dependent
diffraction, yielding an optimization problem which is solved by making use of
a Newton gradient iteration scheme. With this procedure, we investigate the
spin-dependent effect for different transverse electron momenta and different
laser polarizations of the standing light wave Kapitza-Dirac scattering. The
possibility for using arbitrarily low transverse electron momenta, when setting
up a spin-dependent Kapitza-Dirac experiment allows longer interaction times of
the electron with the laser and therefore enables less constraining parameters
for an implementation of the effect.
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