Experimental test of error-disturbance uncertainty relation with continuous variables
نویسندگان
چکیده
منابع مشابه
Experimental test of error-disturbance uncertainty relations by weak measurement.
We experimentally test the error-disturbance uncertainty relation (EDR) in generalized, strength-variable measurement of a single photon polarization qubit, making use of weak measurement that keeps the initial signal state practically unchanged. We demonstrate that the Heisenberg EDR is violated, yet the Ozawa and Branciard EDRs are valid throughout the range of our measurement strength.
متن کاملExperimental violation and reformulation of the Heisenberg's error-disturbance uncertainty relation
The uncertainty principle formulated by Heisenberg in 1927 describes a trade-off between the error of a measurement of one observable and the disturbance caused on another complementary observable such that their product should be no less than the limit set by Planck's constant. However, Ozawa in 1988 showed a model of position measurement that breaks Heisenberg's relation and in 2003 revealed ...
متن کاملDisproving Heisenberg’s error-disturbance relation
Recently, Busch, Lahti, and Werner [1] claimed that Heisenberg’s error-disturbance relation can be proved in its original form with new formulations of error and disturbance, in contrast to the theory proposed by the present author [2–5] and confirmed by recent experiments [6–9]. Despite their claim, it is shown here that a class of solvable models of position measurement with explicit interact...
متن کاملProof of Heisenberg's error-disturbance relation.
While the slogan "no measurement without disturbance" has established itself under the name of the Heisenberg effect in the consciousness of the scientifically interested public, a precise statement of this fundamental feature of the quantum world has remained elusive, and serious attempts at rigorous formulations of it as a consequence of quantum theory have led to seemingly conflicting prelim...
متن کاملInformation-Disturbance theorem and Uncertainty Relation
It has been shown that Information-Disturbance theorem can play an important role in security proof of quantum cryptography. The theorem is by itself interesting since it can be regarded as an information theoretic version of uncertainty principle. It, however, has been able to treat restricted situations. In this paper, the restriction on the source is abandoned, and a general information-dist...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Photonics Research
سال: 2019
ISSN: 2327-9125
DOI: 10.1364/prj.7.000a56