Zitterbewegung of electronic wave packets in semiconductor nanostructures

Abstract

We study the zitterbewegung of electronic wave packets in III-V zinc-blende semiconductor quantum wells due to spin-orbit coupling. Our results suggest a direct experimental proof of this fundamental effect, confirming a long-standing theoretical prediction. For electron motion in a harmonic quantum wire, we numerically and analytically find a resonance condition maximizing the zitterbewegung.

arXiv comment5 pages, 2 figures included, a few remarks added, to appear in Phys. Rev. Lett

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