Journal
PHYSICA SCRIPTA
Volume T140, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0031-8949/2010/T140/014062
Keywords
-
Categories
Ask authors/readers for more resources
In this paper we address the estimation of the phase shift imposed on a qubit in the presence of phase diffusion. We evaluate the ultimate quantum limits to precision and determine optimal probes and measurements achieving those bounds. We also analyse in detail the performances of spin measurements and have found that although the corresponding Fisher information depends on the unknown value of the phase shift, we may still achieve the ultimate bound using a two-step adaptive method.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available