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The dynamics of a spin--1/2 neutral particle possessing electric and magneticdipole moments interacting with external electric and magnetic fields innoncommutative coordinates is obtained. Noncommutativity of space is interposedin terms of a semiclassical constrained Hamiltonian system. The relationbetween the quantum phase acquired by a particle interacting with anelectromagnetic field and the (semi)classical force acting on the system isexamined and generalized to establish a formulation of the quantum phases innoncommutative coordinates. The general formalism is applied to physicalsystems yielding the Aharonov-Bohm, Aharonov-Casher, He-McKellar-Wilkens andAnandan phases in noncommutative coordinates. Bounds for the noncommutativityparameter theta are derived comparing the deformed phases with the experimentaldata on the Aharonov-Bohm and Aharonov-Casher phases.

Dynamics of Dipoles and Quantum Phases in Noncommutative Coordinates