Monitoring decoherence via measurement of quantum coherence

摘要: Abstract A multi-slit interference experiment, with which-way detectors, in the presence of environment induced decoherence, is theoretically analyzed. The effect modeled via a coupling to bath harmonic oscillators. Through an exact analysis, expression for C , recently introduced measure coherence, particle at detecting screen obtained as function parameters environment. It argued that decoherence can be quantified using measured coherence value which lies between zero and one. For specific case two slits, it shown time from thus providing novel way quantify direct measurement quantum coherence. This would significant many current studies seek exploit superpositions information applications scalable computation.