1994/08/28 by Lev Vaidman, Vaidman, Lev
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Quantum Mechanics and Applications #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9408154
17 pages, 4 figures, TAUP 2194-94, for Proc. of Erice School 94#
openalex publication_date 1994/08/28 · arxiv created 1994/09/08 · arxiv updated 2009/11/30 · openalex created_date 2022/09/02 · openalex updated_date 2026/07/28
Weak measurement is a standard measuring procedure with two changes: it is performed on pre- and post-selected quantum systems and the coupling to the measuring device is weakened. The outcomes of weak measurements, ``weak values'' are very different for the eigenvalues of the measured operators. The weak values yield novel rich structure of the quantum world. Weak values help explaining peculiar quantum phenomena and finding new effects which might have practical applications.