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On Uncertainties in Successive Measurements | | Jacques Distler
; Sonia Paban
; | | Date: |
17 Nov 2012 | | Abstract: | When you measure an observable, A, in Quantum Mechanics, the state of the
system changes. This, in turn, affects the quantum-mechanical uncertainty in
some non-commuting observable, B. The standard Uncertainty Relation puts a
lower bound on the uncertainty of B in the initial state. What is relevant for
a subsequent measurement of B, however, is the uncertainty of B in the
post-measurement state. We make some remarks on the latter problem, both in the
case where A has a pure point spectrum and in the case where A has a continuous
spectrum. | | Source: | arXiv, 1211.4169 | | Services: | Forum | Review | PDF | Favorites | |
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