Phys. Rev. Lett. 56, 1437–1440 (1986)Is Hilbert Space Too Large?Received 31 December 1985; published in the issue dated 7 April 1986 Two aspects of the irreversible measurement transformation are explored. The first is the range of allowed values for the joint uncertainty of two operators having no common eigenvector. The second is the constraint on states and operations following from the requirement that the uncertainty resolved by completing a measurement shall be always finite. © 1986 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.56.1437
DOI:
10.1103/PhysRevLett.56.1437
PACS:
03.65.Bz
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