Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Delayed Choice Between Purely Classical States   It is argued that Wheeler's insightful idea of delayed choice experiments may
be explored at a classical level, arising naturally from number-theoretical
conjugacies always necessarily present in the equations of motion. For simple
and representative systems, we illustrate how to cast the equations of motion
in a form encoding all classical states simultaneously through a ``state
parameter''. By suitably selecting the parameter one may project the system
into any desired classical state.

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The categories of this paper are: hep-th
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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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: solv-int
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The categories of this paper are: plasm-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
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The categories of this paper are: supr-con
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The categories of this paper are: cs