Disturbance-Disturbance uncertainty relation: The statistical distinguishability of quantum states determines disturbance

Information-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...

Sleep Disturbance in Travelers

Quantum uncertainty switches on or off the error-disturbance tradeoff

The indeterminacy of quantum mechanics was originally presented by Heisenberg through the tradeoff between the measuring error of the observable A and the consequential disturbance to the value of another observable B. This tradeoff now has become a popular interpretation of the uncertainty principle. However, the historic idea has never been exactly formulated previously and is recently called...

Disproving 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...

Disturbance maintains alternative biome states.

Understanding the mechanisms controlling the distribution of biomes remains a challenge. Although tropical biome distribution has traditionally been explained by climate and soil, contrasting vegetation types often occur as mosaics with sharp boundaries under very similar environmental conditions. While evidence suggests that these biomes are alternative states, empirical broad-scale support to...