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Abstract
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In this article we present the time evolution of the electronic spin
and subbands states, of an electron in an anisotropic two dimensional
Rashba quantum dot, to which a magnetic field of arbitrary
strength is applied. We also explicitly include the confining (gate)
effects as a two dimensional anisotropic harmonic oscillator. From
the governing Hamiltonian we compute the time evolution of the
initial state, leading to spin and subbands averages as functions
of time. Our results indicate that the spin, on the average, precesses
about the magnetic field, on an ellipse with intrinsic wobbling. The
subbands populations, similar to the case of atom-photon interaction,
follow the pattern of collapse–revivals.
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