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DECOHERENCE AND MATTER WAVE INTERFEROMETRY

A two-slit interference of a massive particle in the presence of environment-induced decoherence is theoretically analyzed. The Markovian Master equation, derived from coupling the particle to a harmonic-oscillator heat bath, is used to obtain exact solutions which show the existence of an interference pattern. Interestingly, decoherence does not affect the pattern, but only leads to a reduction in the fringe visibility.