title: Phase estimation with weak measurement using a white light source.
abstract: We report results of a high precision phase estimation based on a weak measurement scheme using a commercial light-emitting diode. The method is based on a measurement of the imaginary part of the weak value of a polarization operator. The imaginary part of the weak value appeared due to the measurement interaction itself. The sensitivity of our method is equivalent to resolving light pulses of the order of a attosecond and it is robust against chromatic dispersion.
authors.affiliation: Key Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei 230026, People's Republic of China.
authors.forename: Xiao-Ye
authors.initials: XY
authors.lastname: Xu
authors.forename: Yaron
authors.initials: Y
authors.lastname: Kedem
authors.forename: Kai
authors.initials: K
authors.lastname: Sun
authors.forename: Lev
authors.initials: L
authors.lastname: Vaidman
authors.forename: Chuan-Feng
authors.initials: CF
authors.lastname: Li
authors.forename: Guang-Can
authors.initials: GC
authors.lastname: Guo