Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Bulletin of the American Physical Society

Estimation of a quantum interaction parameter using weak quantum measurement: theory and experiment

M. E. Goggin, Holger Friedrich Hofmann, Marcelo Pereira de Almeida, Marco Barbieri

Published Jun 6, 2012• 0 citations
OpenAlex

Related papers

Weak Quantum Measurement and Quantum Information

Jong Chan Lee, Hyang‐Tag Lim, Kang-Hee Hong +1 more

Physics and High Technology•May 31, 2013•0 citations

Estimation of a quantum interaction parameter using weak measurements: Theory and experiment

Holger Friedrich Hofmann, M. E. Goggin, Marcelo Pereira de Almeida +1 more

We investigate the estimation of a small interaction parameter from the outcomes of weak quantum measurements implemented by the interaction. The relation of weak values and sensitivity is explained and the different contributions of postselected results are identified using experimental data. The results show how weak values can be used to control the distribution of input state sensitivity between different postselected outcomes.

arXiv:1107.4735•Physical Review A•Oct 22, 2012•36 citations

Interaction Free Measurement of Quantum Systems

Onofrio L. Russo, Liang Jiang

Bulletin of the American Physical Society•Feb 28, 2012•0 citations

Does the post-selection amplify the information for parameter estimation?

Saki Tanaka, Naoki Yamamoto

It is known that the weak measurement can significantly amplify the mean of measurement results, sometimes out of the range limited in usual quantum measurement. This fact, as actively demonstrated recently in both theory and experiment, implies the possibility to estimate a very small parameter using the weak measurement technique. But does the weak measurement really bring about the increase of information for parameter estimation? This paper provides an answer to this question, in a general situation.

•Jun 11, 2013•1 citation

Determination of general quantum states by weak measurement

Jeff S. Lundeen, C. Bamber

•Oct 4, 2011•0 citations

Ultra-small time-delay estimation via a weak measurement technique with post-selection

Chen Fang, Jing-Zheng Huang, Yang Yu +2 more

Abstract Weak measurement is a novel technique for parameter estimation with higher precision. In this paper we develop a general theory for the parameter estimation based on a weak measurement technique with arbitrary post-selection. The weak-value amplification model and the joint weak measurement model are two special cases in our theory. Applying the developed theory, time-delay estimation is investigated in both theory and experiments. The experimental results show that when the time delay is ultra-small, the joint weak measurement scheme outperforms the weak-value amplification scheme, and is robust against not only misalignment errors but also the wavelength dependence of the optical components. These results are consistent with theoretical predictions that have not been previously verified by any experiment.

arXiv:1509.04003•Journal of Physics B Atomic Molecular and Optical Physics•Aug 10, 2016•45 citations
It is known that the weak measurement can significantly amplify the mean of measurement results, sometimes out of the range limited in usual quantum measurement. This fact, as actively demonstrated recently in both theory and experiment, implies the possibility to estimate a very small parameter using the weak measurement technique. But does the weak measurement really bring about the increase of information for parameter estimation? This paper provides an answer to this question, in a general situation.
Abstract Weak measurement is a novel technique for parameter estimation with higher precision. In this paper we develop a general theory for the parameter estimation based on a weak measurement technique with arbitrary post-selection. The weak-value amplification model and the joint weak measurement model are two special cases in our theory. Applying the developed theory, time-delay estimation is investigated in both theory and experiments. The experimental results show that when the time delay is ultra-small, the joint weak measurement scheme outperforms the weak-value amplification scheme, and is robust against not only misalignment errors but also the wavelength dependence of the optical components. These results are consistent with theoretical predictions that have not been previously verified by any experiment.