Eur. Phys. J. D 45, 363-367 (2007)
https://doi.org/10.1140/epjd/e2007-00264-8

Enhancement and generation of sum squeezing in two-mode light in mixing with coherent light using a beam splitter

¹ Physics Department, University of Allahabad, Allahabad, 211002, India
² M.N. Saha Center of Space Studies, Institute of Interdisciplinary Studies, University of Allahabad, Allahabad, 211002, India
³ V.S. Mehta College of Science, Bharwari, Kaushambi 212201, UP, India

Corresponding authors: ^a prakash_hari123@rediffmail.com - ^b kndmishra@rediffmail.com

Received: 19 February 2007
Revised: 24 May 2007
Published online: 19 September 2007

Abstract

Recently, we showed [J. Phys. B: At. Mol. Opt. Phys. 38, 665 (2005)] that the `amplitude-squared squeezing', a non-classical feature, can be enhanced in mixing with a coherent light beam using a beam splitter. Here, we show that the sum squeezing in a two-uncorrelated-mode light beam (one mode is in Gaussian state and the other one is in coherent state), which is degenerate limit of amplitude-squared squeezing, may be generated or enhanced in mixing with a two-mode coherent light beam using a beam splitter.