Fringe visibility, which-way information and weak value. (22nd May 2019)

• Record Type: Journal Article
• Authors: Kim, Minsu; Kim, Sang Wook
• Is Part Of: Journal of physics. Volume 52:Number 11(2019:Jun. 14)
• Publication Date: 2019-05-22
• Subjects: wave-particle duality -- weak value -- weak measurement; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/ab18dc
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We show how to obtain both complete which-way information and a perfect interference pattern simultaneously in a double-slit experiment using a quantum weak value scheme. It does not violate the wave-particle duality since we select only part of the interference data based on the post-selection of the final state following the idea of a weak value. We also show that our scheme is robust in consideration of generalized set-ups using spin models.