Measuring the wave function of light
- 1 July 1993
- journal article
- other
- Published by IOP Publishing in Physics World
- Vol. 6 (7) , 28-29
- https://doi.org/10.1088/2058-7058/6/7/32
Abstract
It is not, in general, possible to measure the state of a single quantum system. Any observable we might measure will usually have an intrinsic uncertainty associated with it, the extent of which cannot be determined by a single observation. Moreover, complementary observables cannot, even in principle, be determined with unlimited accuracy because of Heisen-berg's uncertainty principle. These features are as true for the electromagnetic field as for any other entity in quantum theory.Keywords
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