Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Zeno suppression of dipole-dipole forces   We consider inter-atomic forces due to resonant dipole-dipole interactions
within a dimer of highly excited Rydberg atoms, embedded in an ultra-cold gas.
These forces rely on a coherent superposition of two-atom electronic states,
which is destroyed by continuous monitoring of the dimer state through a
detection scheme utilizing controllable interactions with the background gas
atoms. We show that this intrinsic decoherence of the molecular energy surface
can gradually deteriorate a repulsive dimer state, causing a mixing of
attractive and repulsive character. For sufficiently strong decoherence, a
Zeno-like effect causes a complete arrest of interatomic forces. We finally
show how short decohering pulses can controllably redistribute population
between the different molecular energy surfaces.

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The categories of this paper are: hep-th
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The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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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: solv-int
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: cs
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The categories of this paper are: eess
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The categories of this paper are: alg-geom