Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing the evolution of Stark wave packets by a weak half cycle pulse   We probe the dynamic evolution of a Stark wave packet in cesium using weak
half-cycle pulses (HCP's). The state-selective field ionization(SSFI) spectra
taken as a function of HCP delay reveal wave packet dynamics such as Kepler
beats, Stark revivals and fractional revivals. A quantum-mechanical simulation
explains the results as multi-mode interference induced by the HCP.

4
The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: math
22
The categories of this paper are: chao-dyn
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The categories of this paper are: physics
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph