Joint quantum measurements with minimum uncertainty
Quantum Physics
2014-01-17 v2
Abstract
Quantum physics constrains the accuracy of joint measurements of incompatible observables. Here we test tight measurement-uncertainty relations using single photons. We implement two independent, idealized uncertainty-estimation methods, the 3-state method and the weak-measurement method, and adapt them to realistic experimental conditions. Exceptional quantum state fidelities of up to 0.99998(6) allow us to verge upon the fundamental limits of measurement uncertainty.
Cite
@article{arxiv.1308.5688,
title = {Joint quantum measurements with minimum uncertainty},
author = {Martin Ringbauer and Devon N. Biggerstaff and Matthew A. Broome and Alessandro Fedrizzi and Cyril Branciard and Andrew G. White},
journal= {arXiv preprint arXiv:1308.5688},
year = {2014}
}
Comments
13 pages, 12 figures