Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: C1.00133 : Zitterbewegung-induced Spin Resonance in Quantum Wires
Author:
Recently, the \textit{Zitterbewegung} in quantum wires was
proposed theoretically by Schliemann \textit{et al.} [1].
This effect is characterized by an oscillatory motion in the
position and spin components of an electron wave packet injected
along the quantum wire with spin-orbit coupling. We investigate
the \textit{Zitterbewegung} evaluating time dependent expectation
value for the spin operators.
Here we consider the \textit{Zitterbewegung} in a multi-band
quantum wire with both the Rashba and Dresselhaus spin-orbit
interactions.
We find that an external magnetic field perpendicular to the
quantum wire can be used to tune the probability of spin flip,
i.e., the resonance condition.
A possible experimental scenario to observe this effect is
proposed using injection via a quantum point contact.\\[4pt]
[1] J. Schliemann, D. Loss, and R.M. Westervelt, Phys. Rev. Lett.
\textbf{94}, 206801 (2005).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.C1.133
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