Skip to main content
Article thumbnail
Location of Repository

Ultra-sensitive phase estimation with white light

By Chuan-Feng Li, Xiao-Ye Xu, Jian-Shun Tang, Jin-Shi Xu and Guang-Can Guo


An improvement of the scheme by Brunner and Simon [Phys. Rev. Lett. 105, 010405 (2010)] is proposed in order to show that quantum weak measurements can provide a method to detect ultrasmall longitudinal phase shifts, even with white light. By performing an analysis in the frequency domain, we find that the amplification effect will work as long as the spectrum is large enough, irrespective of the behavior in the time domain. As such, the previous scheme can be notably simplified for experimental implementations

Topics: Quantum Physics
Year: 2011
DOI identifier: 10.1103/PhysRevA.83.044102
OAI identifier:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.