Quantum Optics and Quantum Information

The European Physical Journal D

, Volume 45, Issue 2, pp 363-367

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

  • H. PrakashAffiliated withPhysics Department, University of AllahabadM.N. Saha Center of Space Studies, Institute of Interdisciplinary Studies, University of Allahabad Email author 
  • , D. K. MishraAffiliated withPhysics Department, University of AllahabadV.S. Mehta College of Science, Bharwari, Kaushambi 212201

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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.


42.50.Dv Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements