Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strang splitting schemes for N-level Bloch models   We extend to the N-level Bloch model the splitting scheme which use exact
numerical solutions of sub-equations. These exact solutions involve matrix
exponentials which we want to avoid to calculate at each time step. We use
Newton interpolation to reduce the computational cost. The resulting scheme is
nonstandard and preserves all qualitative properties of the Bloch equations. We
show numerical simulations to compare this approach with a few other schemes.

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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: nlin
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin