Open AccessTHE PREPARATION OF FOCK STATES BY QUANTUM MEASUREMENTS IN A KERR MEDIA AND THE INFLUENCE OF SELF-PHASE MODULATION
Author(s) -
Zhou Wei,
Xue Qiu-Han,
GuangCan Guo
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.1297
Subject(s) - fock space , fock state , modulation (music) , coherent states , physics , phase (matter) , phase modulation , signal (programming language) , photon , quantum , quantum mechanics , optics , computer science , acoustics , programming language
A scheme for the preparation of a Fock state is proposed. We study two lights interacting in a Kerr media with self-phase modulation. The signal light and the probe light whose initial states are both coherent states will be entangled via interaction, then when a quadrature component of the probe light is measured, the photon number distribution of the signal light is modulated. Repeating the process, we find the signal will collapse into a Fock state finally, and the physical principle of this evolution is based on the cross-phase modulation, the self-phase modulation may hinder the preparation of a Fock state.