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The origin of noncommutativity?
Consistent boundary Poisson structures for open string theory coupled to
background -field are considered using the new approach proposed in
hep-th/0111005. It is found that there are infinitely many consistent Poisson
structures, each leads to a consistent canonical quantization of open string in
the presence of background -field. Consequently, whether the -branes to
which the open string end points are attached is noncommutative or not depends
on the choice of a particular Poisson structure.Comment: Revtex4, published versio
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