Tuesday, July 16, 2013

1307.3604 (Lee A. Rozema et al.)

A Note on Different Definitions of Momentum Disturbance    [PDF]

Lee A. Rozema, Dylan H. Mahler, Alex Hayat, Aephraim M. Steinberg
In [1], Busch et al. showed that it is possible to construct an error-disturbance relation having the same form as Heisenberg's original heuristic definition[2], in contrast to the theory proposed by Ozawa[3] which we and others recently confirmed experimentally[4,5]. With Ozawa's definitions of measurement error and disturbance, a relation of Heisenberg's form is not in general valid, and a new error-disturbance relationship can be derived. Here we explain the different physical significance of the two definitions, and suggest that Ozawa's definition better corresponds to the usual understanding of the disturbance that Heisenberg discussed.
View original: http://arxiv.org/abs/1307.3604

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