Abstract
The difference between the two nonclassical photon states, i.e., the squeezed state and the number-phase minimum-uncertainty state, is discussed. Four different generation principles for number-phase minimum-uncertainty states (and number states) are described. They are the following: (1) unitary evolution, using self-phase modulation and interference; (2) nonunitary state reduction, using either quantum nondemolition photon-number measurement or parametrically amplified idler-wave photon counting; (3) negative-feedback oscillators, incorporating a correlated photon-pair generator; and (4) pump-amplitude noise-suppressed lasers. A number-phase minimum-uncertainty state with photon-number noise reduced to 1 dB (20%) below the standard quantum limit in a frequency range over 100 MHz was produced by the fourth-generation principle.
© 1987 Optical Society of America
Full Article | PDF ArticleMore Like This
Ling-An Wu, Min Xiao, and H. J. Kimble
J. Opt. Soc. Am. B 4(10) 1465-1475 (1987)
G. J. Milburn, M. D. Levenson, R. M. Shelby, S. H. Perlmutter, R. G. DeVoe, and D. F. Walls
J. Opt. Soc. Am. B 4(10) 1476-1489 (1987)
A. Jann and Y. Ben-Aryeh
J. Opt. Soc. Am. B 13(5) 761-767 (1996)