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The Role of Detector in Which-Way Experiment
Department of Physics, Graduate School of the Chinese Academy of Sciences, Beijing, China
- 1 Department of Physics, Graduate School of the Chinese Academy of Sciences, Beijing, China
Journal of Quantum Information Science·Volume 03 (2013)·Pages 20–22·Published 29 March 2013·DOI10.4236/jqis.2013.31005
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Abstract
Following Scully et al. ’s study on the mechanism of complementarity, we further investigate the role of detector in which-way experiment. We will show that the initial quantum pure state of particle will reduce to a mixture state because of the inevitable interaction between particle and detector, then the coherence of wavefunction for the particle fal ling on the screen will be destroyed, which leads to the disappearance of interference fringes in which-way experiment.
KeywordsWhich-Way ExperimentDecoherenceDetector
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