Measurement, Luders and von Neumann projections and non-locality

Patra, Sudip and Ghose, Partha (2022) Measurement, Luders and von Neumann projections and non-locality. Pramana - Journal of Physics, 96 (1): 34. ISSN 0304-4289

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The nature of the Lüders projection and its relationship with the von Neumann projection are clarified. It is shown that Lüders-like transformations can be obtained by local unitary transformations on single and product states, but not entangled states. Several examples are given to illustrate this. The distinction between the two projections is further clarified by the analyses of the measurement process on both entangled and single-particle systems. A possible experimental test of the Lüders postulate for non-degenerate systems is also proposed.

Item Type: Article
Keywords: Measurement postulate | Luders ansatz | Neumann projections | Non-locality | EPR
Subjects: Physical, Life and Health Sciences > Physics and Astronomy
JGU School/Centre: Jindal School of Government and Public Policy
Depositing User: Shilpi Rana
Date Deposited: 29 Jan 2022 11:53
Last Modified: 16 Feb 2022 13:42
Official URL:


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