Trade-off relation between information and disturbance in quantum measurement

Tomohiro Shitara, Yui Kuramochi, and Masahito Ueda
Phys. Rev. A 93, 032134 – Published 29 March 2016

Abstract

We formulate a trade-off relation between information and disturbance in quantum measurement from an estimation-theoretic point of view. The information and disturbance are characterized in terms of the classical Fisher information and the average loss of the quantum Fisher information, respectively. We identify the necessary condition for various divergences between two quantum states to satisfy similar relations.

  • Received 19 January 2016

DOI:https://doi.org/10.1103/PhysRevA.93.032134

©2016 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
General Physics

Authors & Affiliations

Tomohiro Shitara1,*, Yui Kuramochi2, and Masahito Ueda1,3

  • 1Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8654, Japan
  • 2Department of Nuclear Engineering, Kyoto University, Kyoto 615-8540, Japan
  • 3RIKEN Center for Emergent Matter Science, Wako 351-0198, Japan

  • *shitara@cat.phys.s.u-tokyo.ac.jp

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 93, Iss. 3 — March 2016

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×