Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Position and Spin Control by Dynamical Ultrastrong Spin-Orbit Coupling   Focusing on the efficient probe and manipulation of single-particle spin
states, we investigate the coupled spin and orbital dynamics of a spin 1/2
particle in a harmonic potential subject to ultrastrong spin-orbit interaction
and external magnetic field. The advantage of these systems is the clear
visualization of the strong spin-orbit coupling in the orbital dynamics. We
also investigate the effect of a time-dependent coupling: Its nonadiabatic
change causes an interesting interplay of spin and orbital motion which is
related to the direction and magnitude of the applied magnetic field. This
result suggests that orbital state manipulation can be realized through
ultrastrong spin-orbit interactions, becoming a useful tool for handling
entangled spin and orbital degrees of freedom to produce, for example, spin
desirable polarizations in time interesting for spintronics implementations.

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The categories of this paper are: quant-ph
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The categories of this paper are: funct-an
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc